Home / 112,631.72-155,449.20-64,233.74

Finding the Fourth Proportional to 112,631.72, 155,449.20 and 64,233.74

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Solution

The fourth proportional to 112,631.72, 155,449.20 and 64,233.74 is: 88,652.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,631.72 : 155,449.20 = 64,233.74 : x
  2. Step 2: Convert to fraction form
    112,631.72/155,449.20 = 64,233.74/x
  3. Step 3: Cross multiply
    112,631.72x = 155,449.20 × 64,233.74
  4. Step 4: Simplify right side
    112,631.72x = 9,985,082,718.76
  5. Step 5: Solve for x
    x = 9,985,082,718.76/112,631.72
  6. Step 6: Final answer
    x = 88,652.50

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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.