Home / 154,229.34-212,820.03-86,239.29

Finding the Fourth Proportional to 154,229.34, 212,820.03 and 86,239.29

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Solution

The fourth proportional to 154,229.34, 212,820.03 and 86,239.29 is: 119,001.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,229.34 : 212,820.03 = 86,239.29 : x
  2. Step 2: Convert to fraction form
    154,229.34/212,820.03 = 86,239.29/x
  3. Step 3: Cross multiply
    154,229.34x = 212,820.03 × 86,239.29
  4. Step 4: Simplify right side
    154,229.34x = 18,353,448,284.98
  5. Step 5: Solve for x
    x = 18,353,448,284.98/154,229.34
  6. Step 6: Final answer
    x = 119,001.02

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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.