Home / 118,721.18-163,835.21-65,006.19

Finding the Fourth Proportional to 118,721.18, 163,835.21 and 65,006.19

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Solution

The fourth proportional to 118,721.18, 163,835.21 and 65,006.19 is: 89,708.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,721.18 : 163,835.21 = 65,006.19 : x
  2. Step 2: Convert to fraction form
    118,721.18/163,835.21 = 65,006.19/x
  3. Step 3: Cross multiply
    118,721.18x = 163,835.21 × 65,006.19
  4. Step 4: Simplify right side
    118,721.18x = 10,650,302,952.47
  5. Step 5: Solve for x
    x = 10,650,302,952.47/118,721.18
  6. Step 6: Final answer
    x = 89,708.53

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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.