Home / 112,516.20-168,839.10-42,445.80

Finding the Fourth Proportional to 112,516.20, 168,839.10 and 42,445.80

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Solution

The fourth proportional to 112,516.20, 168,839.10 and 42,445.80 is: 63,693.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,516.20 : 168,839.10 = 42,445.80 : x
  2. Step 2: Convert to fraction form
    112,516.20/168,839.10 = 42,445.80/x
  3. Step 3: Cross multiply
    112,516.20x = 168,839.10 × 42,445.80
  4. Step 4: Simplify right side
    112,516.20x = 7,166,510,670.78
  5. Step 5: Solve for x
    x = 7,166,510,670.78/112,516.20
  6. Step 6: Final answer
    x = 63,693.15

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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.