Home / 157,317.12-217,119.84-89,351.04

Finding the Fourth Proportional to 157,317.12, 217,119.84 and 89,351.04

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Solution

The fourth proportional to 157,317.12, 217,119.84 and 89,351.04 is: 123,317.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,317.12 : 217,119.84 = 89,351.04 : x
  2. Step 2: Convert to fraction form
    157,317.12/217,119.84 = 89,351.04/x
  3. Step 3: Cross multiply
    157,317.12x = 217,119.84 × 89,351.04
  4. Step 4: Simplify right side
    157,317.12x = 19,399,883,508.63
  5. Step 5: Solve for x
    x = 19,399,883,508.63/157,317.12
  6. Step 6: Final answer
    x = 123,317.05

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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.