Home / 99,458.10-149,187.15-89,435.70

Finding the Fourth Proportional to 99,458.10, 149,187.15 and 89,435.70

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Solution

The fourth proportional to 99,458.10, 149,187.15 and 89,435.70 is: 134,153.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,458.10 : 149,187.15 = 89,435.70 : x
  2. Step 2: Convert to fraction form
    99,458.10/149,187.15 = 89,435.70/x
  3. Step 3: Cross multiply
    99,458.10x = 149,187.15 × 89,435.70
  4. Step 4: Simplify right side
    99,458.10x = 13,342,657,191.26
  5. Step 5: Solve for x
    x = 13,342,657,191.26/99,458.10
  6. Step 6: Final answer
    x = 134,153.55

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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.