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Finding the Fourth Proportional to 109,650.08, 151,324 and 61,886.08

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Solution

The fourth proportional to 109,650.08, 151,324 and 61,886.08 is: 85,406.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,650.08 : 151,324 = 61,886.08 : x
  2. Step 2: Convert to fraction form
    109,650.08/151,324 = 61,886.08/x
  3. Step 3: Cross multiply
    109,650.08x = 151,324 × 61,886.08
  4. Step 4: Simplify right side
    109,650.08x = 9,364,849,169.92
  5. Step 5: Solve for x
    x = 9,364,849,169.92/109,650.08
  6. Step 6: Final answer
    x = 85,406.68

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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.