Home / 118,189.50-163,115.18-65,806.74

Finding the Fourth Proportional to 118,189.50, 163,115.18 and 65,806.74

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Solution

The fourth proportional to 118,189.50, 163,115.18 and 65,806.74 is: 90,820.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,189.50 : 163,115.18 = 65,806.74 : x
  2. Step 2: Convert to fraction form
    118,189.50/163,115.18 = 65,806.74/x
  3. Step 3: Cross multiply
    118,189.50x = 163,115.18 × 65,806.74
  4. Step 4: Simplify right side
    118,189.50x = 10,734,077,911.28
  5. Step 5: Solve for x
    x = 10,734,077,911.28/118,189.50
  6. Step 6: Final answer
    x = 90,820.91

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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.