Home / 109,635.12-151,288.02-61,893.18

Finding the Fourth Proportional to 109,635.12, 151,288.02 and 61,893.18

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Solution

The fourth proportional to 109,635.12, 151,288.02 and 61,893.18 is: 85,407.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,635.12 : 151,288.02 = 61,893.18 : x
  2. Step 2: Convert to fraction form
    109,635.12/151,288.02 = 61,893.18/x
  3. Step 3: Cross multiply
    109,635.12x = 151,288.02 × 61,893.18
  4. Step 4: Simplify right side
    109,635.12x = 9,363,696,653.70
  5. Step 5: Solve for x
    x = 9,363,696,653.70/109,635.12
  6. Step 6: Final answer
    x = 85,407.82

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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.