Home / 102,588.38-153,567.25-87,454.76

Finding the Fourth Proportional to 102,588.38, 153,567.25 and 87,454.76

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Solution

The fourth proportional to 102,588.38, 153,567.25 and 87,454.76 is: 130,913.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,588.38 : 153,567.25 = 87,454.76 : x
  2. Step 2: Convert to fraction form
    102,588.38/153,567.25 = 87,454.76/x
  3. Step 3: Cross multiply
    102,588.38x = 153,567.25 × 87,454.76
  4. Step 4: Simplify right side
    102,588.38x = 13,430,186,006.14
  5. Step 5: Solve for x
    x = 13,430,186,006.14/102,588.38
  6. Step 6: Final answer
    x = 130,913.33

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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.