Home / 88,515.10-133,031.85-77,110.30

Finding the Fourth Proportional to 88,515.10, 133,031.85 and 77,110.30

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Solution

The fourth proportional to 88,515.10, 133,031.85 and 77,110.30 is: 115,891.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,515.10 : 133,031.85 = 77,110.30 : x
  2. Step 2: Convert to fraction form
    88,515.10/133,031.85 = 77,110.30/x
  3. Step 3: Cross multiply
    88,515.10x = 133,031.85 × 77,110.30
  4. Step 4: Simplify right side
    88,515.10x = 10,258,125,863.06
  5. Step 5: Solve for x
    x = 10,258,125,863.06/88,515.10
  6. Step 6: Final answer
    x = 115,891.25

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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.