Home / 118,652.16-163,787.22-77,831.82

Finding the Fourth Proportional to 118,652.16, 163,787.22 and 77,831.82

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Solution

The fourth proportional to 118,652.16, 163,787.22 and 77,831.82 is: 107,438.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,652.16 : 163,787.22 = 77,831.82 : x
  2. Step 2: Convert to fraction form
    118,652.16/163,787.22 = 77,831.82/x
  3. Step 3: Cross multiply
    118,652.16x = 163,787.22 × 77,831.82
  4. Step 4: Simplify right side
    118,652.16x = 12,747,857,425.34
  5. Step 5: Solve for x
    x = 12,747,857,425.34/118,652.16
  6. Step 6: Final answer
    x = 107,438.90

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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.