Home / 88,717.90-133,076.85-81,460.30

Finding the Fourth Proportional to 88,717.90, 133,076.85 and 81,460.30

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Solution

The fourth proportional to 88,717.90, 133,076.85 and 81,460.30 is: 122,190.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,717.90 : 133,076.85 = 81,460.30 : x
  2. Step 2: Convert to fraction form
    88,717.90/133,076.85 = 81,460.30/x
  3. Step 3: Cross multiply
    88,717.90x = 133,076.85 × 81,460.30
  4. Step 4: Simplify right side
    88,717.90x = 10,840,480,124.06
  5. Step 5: Solve for x
    x = 10,840,480,124.06/88,717.90
  6. Step 6: Final answer
    x = 122,190.45

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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.