Home / 99,785.10-149,677.65-97,816.80

Finding the Fourth Proportional to 99,785.10, 149,677.65 and 97,816.80

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Solution

The fourth proportional to 99,785.10, 149,677.65 and 97,816.80 is: 146,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,785.10 : 149,677.65 = 97,816.80 : x
  2. Step 2: Convert to fraction form
    99,785.10/149,677.65 = 97,816.80/x
  3. Step 3: Cross multiply
    99,785.10x = 149,677.65 × 97,816.80
  4. Step 4: Simplify right side
    99,785.10x = 14,640,988,754.52
  5. Step 5: Solve for x
    x = 14,640,988,754.52/99,785.10
  6. Step 6: Final answer
    x = 146,725.20

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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.