Home / 187,397.12-258,607.24-101,356.20

Finding the Fourth Proportional to 187,397.12, 258,607.24 and 101,356.20

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Solution

The fourth proportional to 187,397.12, 258,607.24 and 101,356.20 is: 139,871.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,397.12 : 258,607.24 = 101,356.20 : x
  2. Step 2: Convert to fraction form
    187,397.12/258,607.24 = 101,356.20/x
  3. Step 3: Cross multiply
    187,397.12x = 258,607.24 × 101,356.20
  4. Step 4: Simplify right side
    187,397.12x = 26,211,447,138.89
  5. Step 5: Solve for x
    x = 26,211,447,138.89/187,397.12
  6. Step 6: Final answer
    x = 139,871.13

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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.