Home / 157,219.20-235,569.60-130,780.80

Finding the Fourth Proportional to 157,219.20, 235,569.60 and 130,780.80

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Solution

The fourth proportional to 157,219.20, 235,569.60 and 130,780.80 is: 195,955.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,219.20 : 235,569.60 = 130,780.80 : x
  2. Step 2: Convert to fraction form
    157,219.20/235,569.60 = 130,780.80/x
  3. Step 3: Cross multiply
    157,219.20x = 235,569.60 × 130,780.80
  4. Step 4: Simplify right side
    157,219.20x = 30,807,980,743.68
  5. Step 5: Solve for x
    x = 30,807,980,743.68/157,219.20
  6. Step 6: Final answer
    x = 195,955.59

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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.