Home / 124,831.20-187,246.80-115,111.20

Finding the Fourth Proportional to 124,831.20, 187,246.80 and 115,111.20

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Solution

The fourth proportional to 124,831.20, 187,246.80 and 115,111.20 is: 172,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,831.20 : 187,246.80 = 115,111.20 : x
  2. Step 2: Convert to fraction form
    124,831.20/187,246.80 = 115,111.20/x
  3. Step 3: Cross multiply
    124,831.20x = 187,246.80 × 115,111.20
  4. Step 4: Simplify right side
    124,831.20x = 21,554,203,844.16
  5. Step 5: Solve for x
    x = 21,554,203,844.16/124,831.20
  6. Step 6: Final answer
    x = 172,666.80

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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.