Home / 98,949.15-136,439.96-76,237.47

Finding the Fourth Proportional to 98,949.15, 136,439.96 and 76,237.47

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Solution

The fourth proportional to 98,949.15, 136,439.96 and 76,237.47 is: 105,123.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,949.15 : 136,439.96 = 76,237.47 : x
  2. Step 2: Convert to fraction form
    98,949.15/136,439.96 = 76,237.47/x
  3. Step 3: Cross multiply
    98,949.15x = 136,439.96 × 76,237.47
  4. Step 4: Simplify right side
    98,949.15x = 10,401,836,976.11
  5. Step 5: Solve for x
    x = 10,401,836,976.11/98,949.15
  6. Step 6: Final answer
    x = 105,123.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.