Home / 157,036.20-216,713.52-85,420.05

Finding the Fourth Proportional to 157,036.20, 216,713.52 and 85,420.05

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Solution

The fourth proportional to 157,036.20, 216,713.52 and 85,420.05 is: 117,881.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,036.20 : 216,713.52 = 85,420.05 : x
  2. Step 2: Convert to fraction form
    157,036.20/216,713.52 = 85,420.05/x
  3. Step 3: Cross multiply
    157,036.20x = 216,713.52 × 85,420.05
  4. Step 4: Simplify right side
    157,036.20x = 18,511,679,714.08
  5. Step 5: Solve for x
    x = 18,511,679,714.08/157,036.20
  6. Step 6: Final answer
    x = 117,881.61

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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.