Home / 121,528.10-182,292.15-42,650.30

Finding the Fourth Proportional to 121,528.10, 182,292.15 and 42,650.30

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Solution

The fourth proportional to 121,528.10, 182,292.15 and 42,650.30 is: 63,975.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,528.10 : 182,292.15 = 42,650.30 : x
  2. Step 2: Convert to fraction form
    121,528.10/182,292.15 = 42,650.30/x
  3. Step 3: Cross multiply
    121,528.10x = 182,292.15 × 42,650.30
  4. Step 4: Simplify right side
    121,528.10x = 7,774,814,885.15
  5. Step 5: Solve for x
    x = 7,774,814,885.15/121,528.10
  6. Step 6: Final answer
    x = 63,975.45

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Similar ratio
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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.