Home / 102,646.42-141,643.98-57,320.86

Finding the Fourth Proportional to 102,646.42, 141,643.98 and 57,320.86

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Solution

The fourth proportional to 102,646.42, 141,643.98 and 57,320.86 is: 79,098.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,646.42 : 141,643.98 = 57,320.86 : x
  2. Step 2: Convert to fraction form
    102,646.42/141,643.98 = 57,320.86/x
  3. Step 3: Cross multiply
    102,646.42x = 141,643.98 × 57,320.86
  4. Step 4: Simplify right side
    102,646.42x = 8,119,154,747.42
  5. Step 5: Solve for x
    x = 8,119,154,747.42/102,646.42
  6. Step 6: Final answer
    x = 79,098.27

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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.