Home / 121,431.98-182,037.70-42,503.14

Finding the Fourth Proportional to 121,431.98, 182,037.70 and 42,503.14

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Solution

The fourth proportional to 121,431.98, 182,037.70 and 42,503.14 is: 63,716.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,431.98 : 182,037.70 = 42,503.14 : x
  2. Step 2: Convert to fraction form
    121,431.98/182,037.70 = 42,503.14/x
  3. Step 3: Cross multiply
    121,431.98x = 182,037.70 × 42,503.14
  4. Step 4: Simplify right side
    121,431.98x = 7,737,173,848.38
  5. Step 5: Solve for x
    x = 7,737,173,848.38/121,431.98
  6. Step 6: Final answer
    x = 63,716.11

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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.