Home / 103,349.86-142,638.42-63,087.10

Finding the Fourth Proportional to 103,349.86, 142,638.42 and 63,087.10

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Solution

The fourth proportional to 103,349.86, 142,638.42 and 63,087.10 is: 87,069.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,349.86 : 142,638.42 = 63,087.10 : x
  2. Step 2: Convert to fraction form
    103,349.86/142,638.42 = 63,087.10/x
  3. Step 3: Cross multiply
    103,349.86x = 142,638.42 × 63,087.10
  4. Step 4: Simplify right side
    103,349.86x = 8,998,644,266.38
  5. Step 5: Solve for x
    x = 8,998,644,266.38/103,349.86
  6. Step 6: Final answer
    x = 87,069.73

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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.