Home / 121,425.47-182,027.95-42,496.64

Finding the Fourth Proportional to 121,425.47, 182,027.95 and 42,496.64

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Solution

The fourth proportional to 121,425.47, 182,027.95 and 42,496.64 is: 63,706.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,425.47 : 182,027.95 = 42,496.64 : x
  2. Step 2: Convert to fraction form
    121,425.47/182,027.95 = 42,496.64/x
  3. Step 3: Cross multiply
    121,425.47x = 182,027.95 × 42,496.64
  4. Step 4: Simplify right side
    121,425.47x = 7,735,577,070.74
  5. Step 5: Solve for x
    x = 7,735,577,070.74/121,425.47
  6. Step 6: Final answer
    x = 63,706.38

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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.