Home / 117,520.68-176,307.12-38,631.72

Finding the Fourth Proportional to 117,520.68, 176,307.12 and 38,631.72

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Solution

The fourth proportional to 117,520.68, 176,307.12 and 38,631.72 is: 57,956.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,520.68 : 176,307.12 = 38,631.72 : x
  2. Step 2: Convert to fraction form
    117,520.68/176,307.12 = 38,631.72/x
  3. Step 3: Cross multiply
    117,520.68x = 176,307.12 × 38,631.72
  4. Step 4: Simplify right side
    117,520.68x = 6,811,047,293.85
  5. Step 5: Solve for x
    x = 6,811,047,293.85/117,520.68
  6. Step 6: Final answer
    x = 57,956.16

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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.