Home / 102,428.96-153,712.89-35,869.64

Finding the Fourth Proportional to 102,428.96, 153,712.89 and 35,869.64

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Solution

The fourth proportional to 102,428.96, 153,712.89 and 35,869.64 is: 53,828.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,428.96 : 153,712.89 = 35,869.64 : x
  2. Step 2: Convert to fraction form
    102,428.96/153,712.89 = 35,869.64/x
  3. Step 3: Cross multiply
    102,428.96x = 153,712.89 × 35,869.64
  4. Step 4: Simplify right side
    102,428.96x = 5,513,625,259.10
  5. Step 5: Solve for x
    x = 5,513,625,259.10/102,428.96
  6. Step 6: Final answer
    x = 53,828.78

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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.