Home / 99,015.66-148,281.25-89,420.21

Finding the Fourth Proportional to 99,015.66, 148,281.25 and 89,420.21

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Solution

The fourth proportional to 99,015.66, 148,281.25 and 89,420.21 is: 133,911.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,015.66 : 148,281.25 = 89,420.21 : x
  2. Step 2: Convert to fraction form
    99,015.66/148,281.25 = 89,420.21/x
  3. Step 3: Cross multiply
    99,015.66x = 148,281.25 × 89,420.21
  4. Step 4: Simplify right side
    99,015.66x = 13,259,340,514.06
  5. Step 5: Solve for x
    x = 13,259,340,514.06/99,015.66
  6. Step 6: Final answer
    x = 133,911.55

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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.