Home / 207,538.72-286,425.12-127,019.86

Finding the Fourth Proportional to 207,538.72, 286,425.12 and 127,019.86

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Solution

The fourth proportional to 207,538.72, 286,425.12 and 127,019.86 is: 175,300.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,538.72 : 286,425.12 = 127,019.86 : x
  2. Step 2: Convert to fraction form
    207,538.72/286,425.12 = 127,019.86/x
  3. Step 3: Cross multiply
    207,538.72x = 286,425.12 × 127,019.86
  4. Step 4: Simplify right side
    207,538.72x = 36,381,678,642.88
  5. Step 5: Solve for x
    x = 36,381,678,642.88/207,538.72
  6. Step 6: Final answer
    x = 175,300.68

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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.