Home / 121,427.60-182,031.12-42,498.77

Finding the Fourth Proportional to 121,427.60, 182,031.12 and 42,498.77

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Solution

The fourth proportional to 121,427.60, 182,031.12 and 42,498.77 is: 63,709.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,427.60 : 182,031.12 = 42,498.77 : x
  2. Step 2: Convert to fraction form
    121,427.60/182,031.12 = 42,498.77/x
  3. Step 3: Cross multiply
    121,427.60x = 182,031.12 × 42,498.77
  4. Step 4: Simplify right side
    121,427.60x = 7,736,097,791.57
  5. Step 5: Solve for x
    x = 7,736,097,791.57/121,427.60
  6. Step 6: Final answer
    x = 63,709.55

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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.