Home / 216,831.78-299,171.10-124,928.58

Finding the Fourth Proportional to 216,831.78, 299,171.10 and 124,928.58

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Solution

The fourth proportional to 216,831.78, 299,171.10 and 124,928.58 is: 172,368.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,831.78 : 299,171.10 = 124,928.58 : x
  2. Step 2: Convert to fraction form
    216,831.78/299,171.10 = 124,928.58/x
  3. Step 3: Cross multiply
    216,831.78x = 299,171.10 × 124,928.58
  4. Step 4: Simplify right side
    216,831.78x = 37,375,020,700.04
  5. Step 5: Solve for x
    x = 37,375,020,700.04/216,831.78
  6. Step 6: Final answer
    x = 172,368.74

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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.