Home / 157,624.20-236,394.70-78,680.20

Finding the Fourth Proportional to 157,624.20, 236,394.70 and 78,680.20

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Solution

The fourth proportional to 157,624.20, 236,394.70 and 78,680.20 is: 117,999.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,624.20 : 236,394.70 = 78,680.20 : x
  2. Step 2: Convert to fraction form
    157,624.20/236,394.70 = 78,680.20/x
  3. Step 3: Cross multiply
    157,624.20x = 236,394.70 × 78,680.20
  4. Step 4: Simplify right side
    157,624.20x = 18,599,582,274.94
  5. Step 5: Solve for x
    x = 18,599,582,274.94/157,624.20
  6. Step 6: Final answer
    x = 117,999.53

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1.5x scale

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.