Home / 99,664.28-138,130.38-97,798.04

Finding the Fourth Proportional to 99,664.28, 138,130.38 and 97,798.04

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Solution

The fourth proportional to 99,664.28, 138,130.38 and 97,798.04 is: 135,543.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,664.28 : 138,130.38 = 97,798.04 : x
  2. Step 2: Convert to fraction form
    99,664.28/138,130.38 = 97,798.04/x
  3. Step 3: Cross multiply
    99,664.28x = 138,130.38 × 97,798.04
  4. Step 4: Simplify right side
    99,664.28x = 13,508,880,428.46
  5. Step 5: Solve for x
    x = 13,508,880,428.46/99,664.28
  6. Step 6: Final answer
    x = 135,543.85

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.