Home / 157,376.20-235,718.70-136,640.20

Finding the Fourth Proportional to 157,376.20, 235,718.70 and 136,640.20

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Solution

The fourth proportional to 157,376.20, 235,718.70 and 136,640.20 is: 204,660.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,376.20 : 235,718.70 = 136,640.20 : x
  2. Step 2: Convert to fraction form
    157,376.20/235,718.70 = 136,640.20/x
  3. Step 3: Cross multiply
    157,376.20x = 235,718.70 × 136,640.20
  4. Step 4: Simplify right side
    157,376.20x = 32,208,650,311.74
  5. Step 5: Solve for x
    x = 32,208,650,311.74/157,376.20
  6. Step 6: Final answer
    x = 204,660.24

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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.