Home / 187,132.16-258,122.88-111,637.76

Finding the Fourth Proportional to 187,132.16, 258,122.88 and 111,637.76

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Solution

The fourth proportional to 187,132.16, 258,122.88 and 111,637.76 is: 153,988.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,132.16 : 258,122.88 = 111,637.76 : x
  2. Step 2: Convert to fraction form
    187,132.16/258,122.88 = 111,637.76/x
  3. Step 3: Cross multiply
    187,132.16x = 258,122.88 × 111,637.76
  4. Step 4: Simplify right side
    187,132.16x = 28,816,260,127.95
  5. Step 5: Solve for x
    x = 28,816,260,127.95/187,132.16
  6. Step 6: Final answer
    x = 153,988.82

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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.