Home / 98,890.20-148,335.30-87,226.20

Finding the Fourth Proportional to 98,890.20, 148,335.30 and 87,226.20

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Solution

The fourth proportional to 98,890.20, 148,335.30 and 87,226.20 is: 130,839.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,890.20 : 148,335.30 = 87,226.20 : x
  2. Step 2: Convert to fraction form
    98,890.20/148,335.30 = 87,226.20/x
  3. Step 3: Cross multiply
    98,890.20x = 148,335.30 × 87,226.20
  4. Step 4: Simplify right side
    98,890.20x = 12,938,724,544.86
  5. Step 5: Solve for x
    x = 12,938,724,544.86/98,890.20
  6. Step 6: Final answer
    x = 130,839.30

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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.