Home / 156,972.65-235,458.98-137,289.65

Finding the Fourth Proportional to 156,972.65, 235,458.98 and 137,289.65

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Solution

The fourth proportional to 156,972.65, 235,458.98 and 137,289.65 is: 205,934.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,972.65 : 235,458.98 = 137,289.65 : x
  2. Step 2: Convert to fraction form
    156,972.65/235,458.98 = 137,289.65/x
  3. Step 3: Cross multiply
    156,972.65x = 235,458.98 × 137,289.65
  4. Step 4: Simplify right side
    156,972.65x = 32,326,080,953.56
  5. Step 5: Solve for x
    x = 32,326,080,953.56/156,972.65
  6. Step 6: Final answer
    x = 205,934.48

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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.