Home / 157,240.20-235,601.10-130,801.80

Finding the Fourth Proportional to 157,240.20, 235,601.10 and 130,801.80

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Solution

The fourth proportional to 157,240.20, 235,601.10 and 130,801.80 is: 195,987.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,240.20 : 235,601.10 = 130,801.80 : x
  2. Step 2: Convert to fraction form
    157,240.20/235,601.10 = 130,801.80/x
  3. Step 3: Cross multiply
    157,240.20x = 235,601.10 × 130,801.80
  4. Step 4: Simplify right side
    157,240.20x = 30,817,047,961.98
  5. Step 5: Solve for x
    x = 30,817,047,961.98/157,240.20
  6. Step 6: Final answer
    x = 195,987.08

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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.