Home / 153,195.04-229,860.92-78,275.76

Finding the Fourth Proportional to 153,195.04, 229,860.92 and 78,275.76

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Solution

The fourth proportional to 153,195.04, 229,860.92 and 78,275.76 is: 117,448.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,195.04 : 229,860.92 = 78,275.76 : x
  2. Step 2: Convert to fraction form
    153,195.04/229,860.92 = 78,275.76/x
  3. Step 3: Cross multiply
    153,195.04x = 229,860.92 × 78,275.76
  4. Step 4: Simplify right side
    153,195.04x = 17,992,538,207.30
  5. Step 5: Solve for x
    x = 17,992,538,207.30/153,195.04
  6. Step 6: Final answer
    x = 117,448.57

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1.5x scale

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.