Home / 187,538.16-281,306.40-76,730.16

Finding the Fourth Proportional to 187,538.16, 281,306.40 and 76,730.16

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Solution

The fourth proportional to 187,538.16, 281,306.40 and 76,730.16 is: 115,094.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,538.16 : 281,306.40 = 76,730.16 : x
  2. Step 2: Convert to fraction form
    187,538.16/281,306.40 = 76,730.16/x
  3. Step 3: Cross multiply
    187,538.16x = 281,306.40 × 76,730.16
  4. Step 4: Simplify right side
    187,538.16x = 21,584,685,081.02
  5. Step 5: Solve for x
    x = 21,584,685,081.02/187,538.16
  6. Step 6: Final answer
    x = 115,094.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.