Home / 145,024.07-217,527.30-86,233.86

Finding the Fourth Proportional to 145,024.07, 217,527.30 and 86,233.86

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Solution

The fourth proportional to 145,024.07, 217,527.30 and 86,233.86 is: 129,345.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,024.07 : 217,527.30 = 86,233.86 : x
  2. Step 2: Convert to fraction form
    145,024.07/217,527.30 = 86,233.86/x
  3. Step 3: Cross multiply
    145,024.07x = 217,527.30 × 86,233.86
  4. Step 4: Simplify right side
    145,024.07x = 18,758,218,734.38
  5. Step 5: Solve for x
    x = 18,758,218,734.38/145,024.07
  6. Step 6: Final answer
    x = 129,345.56

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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.