Home / 100,077.53-149,108.85-98,634.11

Finding the Fourth Proportional to 100,077.53, 149,108.85 and 98,634.11

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Solution

The fourth proportional to 100,077.53, 149,108.85 and 98,634.11 is: 146,958.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,077.53 : 149,108.85 = 98,634.11 : x
  2. Step 2: Convert to fraction form
    100,077.53/149,108.85 = 98,634.11/x
  3. Step 3: Cross multiply
    100,077.53x = 149,108.85 × 98,634.11
  4. Step 4: Simplify right side
    100,077.53x = 14,707,217,967.33
  5. Step 5: Solve for x
    x = 14,707,217,967.33/100,077.53
  6. Step 6: Final answer
    x = 146,958.25

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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.