Home / 111,487,801.60-167,231,702.40-72,745,752.70

Finding the Fourth Proportional to 111,487,801.60, 167,231,702.40 and 72,745,752.70

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Solution

The fourth proportional to 111,487,801.60, 167,231,702.40 and 72,745,752.70 is: 109,118,629.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,487,801.60 : 167,231,702.40 = 72,745,752.70 : x
  2. Step 2: Convert to fraction form
    111,487,801.60/167,231,702.40 = 72,745,752.70/x
  3. Step 3: Cross multiply
    111,487,801.60x = 167,231,702.40 × 72,745,752.70
  4. Step 4: Simplify right side
    111,487,801.60x = 12,165,396,066,390,398
  5. Step 5: Solve for x
    x = 12,165,396,066,390,398/111,487,801.60
  6. Step 6: Final answer
    x = 109,118,629.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.