Home / 109,836.48-151,440-92,810.40

Finding the Fourth Proportional to 109,836.48, 151,440 and 92,810.40

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Solution

The fourth proportional to 109,836.48, 151,440 and 92,810.40 is: 127,964.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,836.48 : 151,440 = 92,810.40 : x
  2. Step 2: Convert to fraction form
    109,836.48/151,440 = 92,810.40/x
  3. Step 3: Cross multiply
    109,836.48x = 151,440 × 92,810.40
  4. Step 4: Simplify right side
    109,836.48x = 14,055,206,976
  5. Step 5: Solve for x
    x = 14,055,206,976/109,836.48
  6. Step 6: Final answer
    x = 127,964.83

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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.