Home / 118,780.08-163,918.38-65,070.18

Finding the Fourth Proportional to 118,780.08, 163,918.38 and 65,070.18

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Solution

The fourth proportional to 118,780.08, 163,918.38 and 65,070.18 is: 89,797.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,780.08 : 163,918.38 = 65,070.18 : x
  2. Step 2: Convert to fraction form
    118,780.08/163,918.38 = 65,070.18/x
  3. Step 3: Cross multiply
    118,780.08x = 163,918.38 × 65,070.18
  4. Step 4: Simplify right side
    118,780.08x = 10,666,198,491.91
  5. Step 5: Solve for x
    x = 10,666,198,491.91/118,780.08
  6. Step 6: Final answer
    x = 89,797.87

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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.