Home / 107,918.28-161,877.60-29,030.40

Finding the Fourth Proportional to 107,918.28, 161,877.60 and 29,030.40

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Solution

The fourth proportional to 107,918.28, 161,877.60 and 29,030.40 is: 43,545.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,918.28 : 161,877.60 = 29,030.40 : x
  2. Step 2: Convert to fraction form
    107,918.28/161,877.60 = 29,030.40/x
  3. Step 3: Cross multiply
    107,918.28x = 161,877.60 × 29,030.40
  4. Step 4: Simplify right side
    107,918.28x = 4,699,371,479.04
  5. Step 5: Solve for x
    x = 4,699,371,479.04/107,918.28
  6. Step 6: Final answer
    x = 43,545.65

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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.