Home / 99,005.04-148,181.40-85,319.28

Finding the Fourth Proportional to 99,005.04, 148,181.40 and 85,319.28

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Solution

The fourth proportional to 99,005.04, 148,181.40 and 85,319.28 is: 127,697.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,005.04 : 148,181.40 = 85,319.28 : x
  2. Step 2: Convert to fraction form
    99,005.04/148,181.40 = 85,319.28/x
  3. Step 3: Cross multiply
    99,005.04x = 148,181.40 × 85,319.28
  4. Step 4: Simplify right side
    99,005.04x = 12,642,730,357.39
  5. Step 5: Solve for x
    x = 12,642,730,357.39/99,005.04
  6. Step 6: Final answer
    x = 127,697.85

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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.