Home / 154,192.80-230,828.40-91,831.20

Finding the Fourth Proportional to 154,192.80, 230,828.40 and 91,831.20

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Solution

The fourth proportional to 154,192.80, 230,828.40 and 91,831.20 is: 137,472.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,192.80 : 230,828.40 = 91,831.20 : x
  2. Step 2: Convert to fraction form
    154,192.80/230,828.40 = 91,831.20/x
  3. Step 3: Cross multiply
    154,192.80x = 230,828.40 × 91,831.20
  4. Step 4: Simplify right side
    154,192.80x = 21,197,248,966.08
  5. Step 5: Solve for x
    x = 21,197,248,966.08/154,192.80
  6. Step 6: Final answer
    x = 137,472.37

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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.