Home / 111,539.30-167,365.65-74,125.40

Finding the Fourth Proportional to 111,539.30, 167,365.65 and 74,125.40

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Solution

The fourth proportional to 111,539.30, 167,365.65 and 74,125.40 is: 111,225.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,539.30 : 167,365.65 = 74,125.40 : x
  2. Step 2: Convert to fraction form
    111,539.30/167,365.65 = 74,125.40/x
  3. Step 3: Cross multiply
    111,539.30x = 167,365.65 × 74,125.40
  4. Step 4: Simplify right side
    111,539.30x = 12,406,045,752.51
  5. Step 5: Solve for x
    x = 12,406,045,752.51/111,539.30
  6. Step 6: Final answer
    x = 111,225.78

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1.5x scale

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.