Home / 112,398.93-155,114.46-74,192.04

Finding the Fourth Proportional to 112,398.93, 155,114.46 and 74,192.04

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Solution

The fourth proportional to 112,398.93, 155,114.46 and 74,192.04 is: 102,387.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,398.93 : 155,114.46 = 74,192.04 : x
  2. Step 2: Convert to fraction form
    112,398.93/155,114.46 = 74,192.04/x
  3. Step 3: Cross multiply
    112,398.93x = 155,114.46 × 74,192.04
  4. Step 4: Simplify right side
    112,398.93x = 11,508,258,220.90
  5. Step 5: Solve for x
    x = 11,508,258,220.90/112,398.93
  6. Step 6: Final answer
    x = 102,387.61

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1.5x scale

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.