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Finding the Fourth Proportional to 113,380.60, 169,962.90 and 42,284.20

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Solution

The fourth proportional to 113,380.60, 169,962.90 and 42,284.20 is: 63,386.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,380.60 : 169,962.90 = 42,284.20 : x
  2. Step 2: Convert to fraction form
    113,380.60/169,962.90 = 42,284.20/x
  3. Step 3: Cross multiply
    113,380.60x = 169,962.90 × 42,284.20
  4. Step 4: Simplify right side
    113,380.60x = 7,186,745,256.18
  5. Step 5: Solve for x
    x = 7,186,745,256.18/113,380.60
  6. Step 6: Final answer
    x = 63,386.02

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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.