Home / 157,867.23-217,856.70-89,880.69

Finding the Fourth Proportional to 157,867.23, 217,856.70 and 89,880.69

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Solution

The fourth proportional to 157,867.23, 217,856.70 and 89,880.69 is: 124,035.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,867.23 : 217,856.70 = 89,880.69 : x
  2. Step 2: Convert to fraction form
    157,867.23/217,856.70 = 89,880.69/x
  3. Step 3: Cross multiply
    157,867.23x = 217,856.70 × 89,880.69
  4. Step 4: Simplify right side
    157,867.23x = 19,581,110,517.12
  5. Step 5: Solve for x
    x = 19,581,110,517.12/157,867.23
  6. Step 6: Final answer
    x = 124,035.31

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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.