Home / 172,023.20-258,034.80-153,652.40

Finding the Fourth Proportional to 172,023.20, 258,034.80 and 153,652.40

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Solution

The fourth proportional to 172,023.20, 258,034.80 and 153,652.40 is: 230,478.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,023.20 : 258,034.80 = 153,652.40 : x
  2. Step 2: Convert to fraction form
    172,023.20/258,034.80 = 153,652.40/x
  3. Step 3: Cross multiply
    172,023.20x = 258,034.80 × 153,652.40
  4. Step 4: Simplify right side
    172,023.20x = 39,647,666,303.52
  5. Step 5: Solve for x
    x = 39,647,666,303.52/172,023.20
  6. Step 6: Final answer
    x = 230,478.60

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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.