Home / 115,126.47-158,830.88-69,787.94

Finding the Fourth Proportional to 115,126.47, 158,830.88 and 69,787.94

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Solution

The fourth proportional to 115,126.47, 158,830.88 and 69,787.94 is: 96,280.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,126.47 : 158,830.88 = 69,787.94 : x
  2. Step 2: Convert to fraction form
    115,126.47/158,830.88 = 69,787.94/x
  3. Step 3: Cross multiply
    115,126.47x = 158,830.88 × 69,787.94
  4. Step 4: Simplify right side
    115,126.47x = 11,084,478,780.49
  5. Step 5: Solve for x
    x = 11,084,478,780.49/115,126.47
  6. Step 6: Final answer
    x = 96,280.89

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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.