Home / 102,699.20-141,649.08-64,937

Finding the Fourth Proportional to 102,699.20, 141,649.08 and 64,937

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Solution

The fourth proportional to 102,699.20, 141,649.08 and 64,937 is: 89,565.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,699.20 : 141,649.08 = 64,937 : x
  2. Step 2: Convert to fraction form
    102,699.20/141,649.08 = 64,937/x
  3. Step 3: Cross multiply
    102,699.20x = 141,649.08 × 64,937
  4. Step 4: Simplify right side
    102,699.20x = 9,198,266,307.96
  5. Step 5: Solve for x
    x = 9,198,266,307.96/102,699.20
  6. Step 6: Final answer
    x = 89,565.12

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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.