Home / 121,682.64-182,503.98-42,778.38

Finding the Fourth Proportional to 121,682.64, 182,503.98 and 42,778.38

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Solution

The fourth proportional to 121,682.64, 182,503.98 and 42,778.38 is: 64,160.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,682.64 : 182,503.98 = 42,778.38 : x
  2. Step 2: Convert to fraction form
    121,682.64/182,503.98 = 42,778.38/x
  3. Step 3: Cross multiply
    121,682.64x = 182,503.98 × 42,778.38
  4. Step 4: Simplify right side
    121,682.64x = 7,807,224,607.95
  5. Step 5: Solve for x
    x = 7,807,224,607.95/121,682.64
  6. Step 6: Final answer
    x = 64,160.55

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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.