Home / 134,831.64-202,422.42-103,688.76

Finding the Fourth Proportional to 134,831.64, 202,422.42 and 103,688.76

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Solution

The fourth proportional to 134,831.64, 202,422.42 and 103,688.76 is: 155,667.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,831.64 : 202,422.42 = 103,688.76 : x
  2. Step 2: Convert to fraction form
    134,831.64/202,422.42 = 103,688.76/x
  3. Step 3: Cross multiply
    134,831.64x = 202,422.42 × 103,688.76
  4. Step 4: Simplify right side
    134,831.64x = 20,988,929,726.00
  5. Step 5: Solve for x
    x = 20,988,929,726.00/134,831.64
  6. Step 6: Final answer
    x = 155,667.69

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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.