Home / 157,081.28-235,638.32-90,596.48

Finding the Fourth Proportional to 157,081.28, 235,638.32 and 90,596.48

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Solution

The fourth proportional to 157,081.28, 235,638.32 and 90,596.48 is: 135,904.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,081.28 : 235,638.32 = 90,596.48 : x
  2. Step 2: Convert to fraction form
    157,081.28/235,638.32 = 90,596.48/x
  3. Step 3: Cross multiply
    157,081.28x = 235,638.32 × 90,596.48
  4. Step 4: Simplify right side
    157,081.28x = 21,348,000,713.94
  5. Step 5: Solve for x
    x = 21,348,000,713.94/157,081.28
  6. Step 6: Final answer
    x = 135,904.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.