Home / 98,996.95-147,778.49-87,026.20

Finding the Fourth Proportional to 98,996.95, 147,778.49 and 87,026.20

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Solution

The fourth proportional to 98,996.95, 147,778.49 and 87,026.20 is: 129,909.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,996.95 : 147,778.49 = 87,026.20 : x
  2. Step 2: Convert to fraction form
    98,996.95/147,778.49 = 87,026.20/x
  3. Step 3: Cross multiply
    98,996.95x = 147,778.49 × 87,026.20
  4. Step 4: Simplify right side
    98,996.95x = 12,860,600,458.13
  5. Step 5: Solve for x
    x = 12,860,600,458.13/98,996.95
  6. Step 6: Final answer
    x = 129,909.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.