Home / 187,013.21-258,082.40-111,547.13

Finding the Fourth Proportional to 187,013.21, 258,082.40 and 111,547.13

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Solution

The fourth proportional to 187,013.21, 258,082.40 and 111,547.13 is: 153,937.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,013.21 : 258,082.40 = 111,547.13 : x
  2. Step 2: Convert to fraction form
    187,013.21/258,082.40 = 111,547.13/x
  3. Step 3: Cross multiply
    187,013.21x = 258,082.40 × 111,547.13
  4. Step 4: Simplify right side
    187,013.21x = 28,788,350,011.97
  5. Step 5: Solve for x
    x = 28,788,350,011.97/187,013.21
  6. Step 6: Final answer
    x = 153,937.53

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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.