Home / 99,110.16-136,885.54-65,269.91

Finding the Fourth Proportional to 99,110.16, 136,885.54 and 65,269.91

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Solution

The fourth proportional to 99,110.16, 136,885.54 and 65,269.91 is: 90,147.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,110.16 : 136,885.54 = 65,269.91 : x
  2. Step 2: Convert to fraction form
    99,110.16/136,885.54 = 65,269.91/x
  3. Step 3: Cross multiply
    99,110.16x = 136,885.54 × 65,269.91
  4. Step 4: Simplify right side
    99,110.16x = 8,934,507,055.14
  5. Step 5: Solve for x
    x = 8,934,507,055.14/99,110.16
  6. Step 6: Final answer
    x = 90,147.24

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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.