Home / 99,230.04-136,922.94-65,741.40

Finding the Fourth Proportional to 99,230.04, 136,922.94 and 65,741.40

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Solution

The fourth proportional to 99,230.04, 136,922.94 and 65,741.40 is: 90,713.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,230.04 : 136,922.94 = 65,741.40 : x
  2. Step 2: Convert to fraction form
    99,230.04/136,922.94 = 65,741.40/x
  3. Step 3: Cross multiply
    99,230.04x = 136,922.94 × 65,741.40
  4. Step 4: Simplify right side
    99,230.04x = 9,001,505,767.72
  5. Step 5: Solve for x
    x = 9,001,505,767.72/99,230.04
  6. Step 6: Final answer
    x = 90,713.52

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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.