Home / 187,630.40-258,931.48-111,153.85

Finding the Fourth Proportional to 187,630.40, 258,931.48 and 111,153.85

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Solution

The fourth proportional to 187,630.40, 258,931.48 and 111,153.85 is: 153,393.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,630.40 : 258,931.48 = 111,153.85 : x
  2. Step 2: Convert to fraction form
    187,630.40/258,931.48 = 111,153.85/x
  3. Step 3: Cross multiply
    187,630.40x = 258,931.48 × 111,153.85
  4. Step 4: Simplify right side
    187,630.40x = 28,781,229,593.54
  5. Step 5: Solve for x
    x = 28,781,229,593.54/187,630.40
  6. Step 6: Final answer
    x = 153,393.21

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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.