Home / 109,647.02-151,312.02-61,909.76

Finding the Fourth Proportional to 109,647.02, 151,312.02 and 61,909.76

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Solution

The fourth proportional to 109,647.02, 151,312.02 and 61,909.76 is: 85,434.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,647.02 : 151,312.02 = 61,909.76 : x
  2. Step 2: Convert to fraction form
    109,647.02/151,312.02 = 61,909.76/x
  3. Step 3: Cross multiply
    109,647.02x = 151,312.02 × 61,909.76
  4. Step 4: Simplify right side
    109,647.02x = 9,367,690,843.32
  5. Step 5: Solve for x
    x = 9,367,690,843.32/109,647.02
  6. Step 6: Final answer
    x = 85,434.98

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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.