Home / 109,686.18-151,367.40-59,385.18

Finding the Fourth Proportional to 109,686.18, 151,367.40 and 59,385.18

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Solution

The fourth proportional to 109,686.18, 151,367.40 and 59,385.18 is: 81,951.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,686.18 : 151,367.40 = 59,385.18 : x
  2. Step 2: Convert to fraction form
    109,686.18/151,367.40 = 59,385.18/x
  3. Step 3: Cross multiply
    109,686.18x = 151,367.40 × 59,385.18
  4. Step 4: Simplify right side
    109,686.18x = 8,988,980,295.13
  5. Step 5: Solve for x
    x = 8,988,980,295.13/109,686.18
  6. Step 6: Final answer
    x = 81,951.80

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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.