Home / 131,719.01-181,792.70-86,527.90

Finding the Fourth Proportional to 131,719.01, 181,792.70 and 86,527.90

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Solution

The fourth proportional to 131,719.01, 181,792.70 and 86,527.90 is: 119,421.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,719.01 : 181,792.70 = 86,527.90 : x
  2. Step 2: Convert to fraction form
    131,719.01/181,792.70 = 86,527.90/x
  3. Step 3: Cross multiply
    131,719.01x = 181,792.70 × 86,527.90
  4. Step 4: Simplify right side
    131,719.01x = 15,730,140,566.33
  5. Step 5: Solve for x
    x = 15,730,140,566.33/131,719.01
  6. Step 6: Final answer
    x = 119,421.95

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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.