Home / 103,179.04-142,326.57-64,877.86

Finding the Fourth Proportional to 103,179.04, 142,326.57 and 64,877.86

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Solution

The fourth proportional to 103,179.04, 142,326.57 and 64,877.86 is: 89,493.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,179.04 : 142,326.57 = 64,877.86 : x
  2. Step 2: Convert to fraction form
    103,179.04/142,326.57 = 64,877.86/x
  3. Step 3: Cross multiply
    103,179.04x = 142,326.57 × 64,877.86
  4. Step 4: Simplify right side
    103,179.04x = 9,233,843,282.74
  5. Step 5: Solve for x
    x = 9,233,843,282.74/103,179.04
  6. Step 6: Final answer
    x = 89,493.40

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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.