Home / 153,120.92-229,728.01-78,293.63

Finding the Fourth Proportional to 153,120.92, 229,728.01 and 78,293.63

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Solution

The fourth proportional to 153,120.92, 229,728.01 and 78,293.63 is: 117,464.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,120.92 : 229,728.01 = 78,293.63 : x
  2. Step 2: Convert to fraction form
    153,120.92/229,728.01 = 78,293.63/x
  3. Step 3: Cross multiply
    153,120.92x = 229,728.01 × 78,293.63
  4. Step 4: Simplify right side
    153,120.92x = 17,986,238,275.47
  5. Step 5: Solve for x
    x = 17,986,238,275.47/153,120.92
  6. Step 6: Final answer
    x = 117,464.28

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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.