Home / 100,192.92-138,266.48-54,253.04

Finding the Fourth Proportional to 100,192.92, 138,266.48 and 54,253.04

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Solution

The fourth proportional to 100,192.92, 138,266.48 and 54,253.04 is: 74,869.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,192.92 : 138,266.48 = 54,253.04 : x
  2. Step 2: Convert to fraction form
    100,192.92/138,266.48 = 54,253.04/x
  3. Step 3: Cross multiply
    100,192.92x = 138,266.48 × 54,253.04
  4. Step 4: Simplify right side
    100,192.92x = 7,501,376,870.10
  5. Step 5: Solve for x
    x = 7,501,376,870.10/100,192.92
  6. Step 6: Final answer
    x = 74,869.33

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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.