Home / 145,023.96-217,527.17-86,233.76

Finding the Fourth Proportional to 145,023.96, 217,527.17 and 86,233.76

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Solution

The fourth proportional to 145,023.96, 217,527.17 and 86,233.76 is: 129,345.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,023.96 : 217,527.17 = 86,233.76 : x
  2. Step 2: Convert to fraction form
    145,023.96/217,527.17 = 86,233.76/x
  3. Step 3: Cross multiply
    145,023.96x = 217,527.17 × 86,233.76
  4. Step 4: Simplify right side
    145,023.96x = 18,758,184,252.45
  5. Step 5: Solve for x
    x = 18,758,184,252.45/145,023.96
  6. Step 6: Final answer
    x = 129,345.41

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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.