Home / 153,394.90-229,659.78-81,184.24

Finding the Fourth Proportional to 153,394.90, 229,659.78 and 81,184.24

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Solution

The fourth proportional to 153,394.90, 229,659.78 and 81,184.24 is: 121,547.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,394.90 : 229,659.78 = 81,184.24 : x
  2. Step 2: Convert to fraction form
    153,394.90/229,659.78 = 81,184.24/x
  3. Step 3: Cross multiply
    153,394.90x = 229,659.78 × 81,184.24
  4. Step 4: Simplify right side
    153,394.90x = 18,644,754,697.87
  5. Step 5: Solve for x
    x = 18,644,754,697.87/153,394.90
  6. Step 6: Final answer
    x = 121,547.42

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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.