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Finding the Fourth Proportional to 107,138.83, 147,841.65 and 59,388.12

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Solution

The fourth proportional to 107,138.83, 147,841.65 and 59,388.12 is: 81,950.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,138.83 : 147,841.65 = 59,388.12 : x
  2. Step 2: Convert to fraction form
    107,138.83/147,841.65 = 59,388.12/x
  3. Step 3: Cross multiply
    107,138.83x = 147,841.65 × 59,388.12
  4. Step 4: Simplify right side
    107,138.83x = 8,780,037,651.20
  5. Step 5: Solve for x
    x = 8,780,037,651.20/107,138.83
  6. Step 6: Final answer
    x = 81,950.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.