Home / 154,234.51-212,842.13-86,250.69

Finding the Fourth Proportional to 154,234.51, 212,842.13 and 86,250.69

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Solution

The fourth proportional to 154,234.51, 212,842.13 and 86,250.69 is: 119,025.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,234.51 : 212,842.13 = 86,250.69 : x
  2. Step 2: Convert to fraction form
    154,234.51/212,842.13 = 86,250.69/x
  3. Step 3: Cross multiply
    154,234.51x = 212,842.13 × 86,250.69
  4. Step 4: Simplify right side
    154,234.51x = 18,357,780,142.32
  5. Step 5: Solve for x
    x = 18,357,780,142.32/154,234.51
  6. Step 6: Final answer
    x = 119,025.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.