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Finding the Fourth Proportional to 99,030.69, 136,650.08 and 63,241.65

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Solution

The fourth proportional to 99,030.69, 136,650.08 and 63,241.65 is: 87,265.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,030.69 : 136,650.08 = 63,241.65 : x
  2. Step 2: Convert to fraction form
    99,030.69/136,650.08 = 63,241.65/x
  3. Step 3: Cross multiply
    99,030.69x = 136,650.08 × 63,241.65
  4. Step 4: Simplify right side
    99,030.69x = 8,641,976,215.62
  5. Step 5: Solve for x
    x = 8,641,976,215.62/99,030.69
  6. Step 6: Final answer
    x = 87,265.64

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1.5x scale

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.