Home / 127,140.16-175,455.64-69,784.84

Finding the Fourth Proportional to 127,140.16, 175,455.64 and 69,784.84

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Solution

The fourth proportional to 127,140.16, 175,455.64 and 69,784.84 is: 96,304.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,140.16 : 175,455.64 = 69,784.84 : x
  2. Step 2: Convert to fraction form
    127,140.16/175,455.64 = 69,784.84/x
  3. Step 3: Cross multiply
    127,140.16x = 175,455.64 × 69,784.84
  4. Step 4: Simplify right side
    127,140.16x = 12,244,143,764.50
  5. Step 5: Solve for x
    x = 12,244,143,764.50/127,140.16
  6. Step 6: Final answer
    x = 96,304.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.