Home / 99,820.10-149,730.15-97,851.80

Finding the Fourth Proportional to 99,820.10, 149,730.15 and 97,851.80

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Solution

The fourth proportional to 99,820.10, 149,730.15 and 97,851.80 is: 146,777.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,820.10 : 149,730.15 = 97,851.80 : x
  2. Step 2: Convert to fraction form
    99,820.10/149,730.15 = 97,851.80/x
  3. Step 3: Cross multiply
    99,820.10x = 149,730.15 × 97,851.80
  4. Step 4: Simplify right side
    99,820.10x = 14,651,364,691.77
  5. Step 5: Solve for x
    x = 14,651,364,691.77/99,820.10
  6. Step 6: Final answer
    x = 146,777.70

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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.