Home / 157,080.30-235,620.45-140,021.70

Finding the Fourth Proportional to 157,080.30, 235,620.45 and 140,021.70

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Solution

The fourth proportional to 157,080.30, 235,620.45 and 140,021.70 is: 210,032.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,080.30 : 235,620.45 = 140,021.70 : x
  2. Step 2: Convert to fraction form
    157,080.30/235,620.45 = 140,021.70/x
  3. Step 3: Cross multiply
    157,080.30x = 235,620.45 × 140,021.70
  4. Step 4: Simplify right side
    157,080.30x = 32,991,975,963.77
  5. Step 5: Solve for x
    x = 32,991,975,963.77/157,080.30
  6. Step 6: Final answer
    x = 210,032.55

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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.