Home / 136,117.80-204,176.70-73,132.20

Finding the Fourth Proportional to 136,117.80, 204,176.70 and 73,132.20

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Solution

The fourth proportional to 136,117.80, 204,176.70 and 73,132.20 is: 109,698.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,117.80 : 204,176.70 = 73,132.20 : x
  2. Step 2: Convert to fraction form
    136,117.80/204,176.70 = 73,132.20/x
  3. Step 3: Cross multiply
    136,117.80x = 204,176.70 × 73,132.20
  4. Step 4: Simplify right side
    136,117.80x = 14,931,891,259.74
  5. Step 5: Solve for x
    x = 14,931,891,259.74/136,117.80
  6. Step 6: Final answer
    x = 109,698.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.