Home / 157,140.24-235,591.56-78,310.14

Finding the Fourth Proportional to 157,140.24, 235,591.56 and 78,310.14

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Solution

The fourth proportional to 157,140.24, 235,591.56 and 78,310.14 is: 117,406.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,140.24 : 235,591.56 = 78,310.14 : x
  2. Step 2: Convert to fraction form
    157,140.24/235,591.56 = 78,310.14/x
  3. Step 3: Cross multiply
    157,140.24x = 235,591.56 × 78,310.14
  4. Step 4: Simplify right side
    157,140.24x = 18,449,208,046.42
  5. Step 5: Solve for x
    x = 18,449,208,046.42/157,140.24
  6. Step 6: Final answer
    x = 117,406.01

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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.