Home / 121,658.31-182,445.20-67,705.32

Finding the Fourth Proportional to 121,658.31, 182,445.20 and 67,705.32

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Solution

The fourth proportional to 121,658.31, 182,445.20 and 67,705.32 is: 101,534.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,658.31 : 182,445.20 = 67,705.32 : x
  2. Step 2: Convert to fraction form
    121,658.31/182,445.20 = 67,705.32/x
  3. Step 3: Cross multiply
    121,658.31x = 182,445.20 × 67,705.32
  4. Step 4: Simplify right side
    121,658.31x = 12,352,510,537.99
  5. Step 5: Solve for x
    x = 12,352,510,537.99/121,658.31
  6. Step 6: Final answer
    x = 101,534.46

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1.5x scale

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.