Home / 118,488.45-163,517.21-70,769.33

Finding the Fourth Proportional to 118,488.45, 163,517.21 and 70,769.33

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Solution

The fourth proportional to 118,488.45, 163,517.21 and 70,769.33 is: 97,663.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,488.45 : 163,517.21 = 70,769.33 : x
  2. Step 2: Convert to fraction form
    118,488.45/163,517.21 = 70,769.33/x
  3. Step 3: Cross multiply
    118,488.45x = 163,517.21 × 70,769.33
  4. Step 4: Simplify right side
    118,488.45x = 11,572,002,223.74
  5. Step 5: Solve for x
    x = 11,572,002,223.74/118,488.45
  6. Step 6: Final answer
    x = 97,663.55

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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.