Home / 154,223.58-231,335.36-86,760.10

Finding the Fourth Proportional to 154,223.58, 231,335.36 and 86,760.10

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Solution

The fourth proportional to 154,223.58, 231,335.36 and 86,760.10 is: 130,140.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,223.58 : 231,335.36 = 86,760.10 : x
  2. Step 2: Convert to fraction form
    154,223.58/231,335.36 = 86,760.10/x
  3. Step 3: Cross multiply
    154,223.58x = 231,335.36 × 86,760.10
  4. Step 4: Simplify right side
    154,223.58x = 20,070,678,967.14
  5. Step 5: Solve for x
    x = 20,070,678,967.14/154,223.58
  6. Step 6: Final answer
    x = 130,140.14

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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.