Home / 239,011.80-329,831.10-131,577.72

Finding the Fourth Proportional to 239,011.80, 329,831.10 and 131,577.72

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Solution

The fourth proportional to 239,011.80, 329,831.10 and 131,577.72 is: 181,574.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,011.80 : 329,831.10 = 131,577.72 : x
  2. Step 2: Convert to fraction form
    239,011.80/329,831.10 = 131,577.72/x
  3. Step 3: Cross multiply
    239,011.80x = 329,831.10 × 131,577.72
  4. Step 4: Simplify right side
    239,011.80x = 43,398,424,123.09
  5. Step 5: Solve for x
    x = 43,398,424,123.09/239,011.80
  6. Step 6: Final answer
    x = 181,574.40

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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.