Home / 154,242.66-212,856.48-90,581.52

Finding the Fourth Proportional to 154,242.66, 212,856.48 and 90,581.52

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Solution

The fourth proportional to 154,242.66, 212,856.48 and 90,581.52 is: 125,003.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,242.66 : 212,856.48 = 90,581.52 : x
  2. Step 2: Convert to fraction form
    154,242.66/212,856.48 = 90,581.52/x
  3. Step 3: Cross multiply
    154,242.66x = 212,856.48 × 90,581.52
  4. Step 4: Simplify right side
    154,242.66x = 19,280,863,500.25
  5. Step 5: Solve for x
    x = 19,280,863,500.25/154,242.66
  6. Step 6: Final answer
    x = 125,003.44

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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.