Home / 154,953.90-232,102.80-138,332.70

Finding the Fourth Proportional to 154,953.90, 232,102.80 and 138,332.70

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Solution

The fourth proportional to 154,953.90, 232,102.80 and 138,332.70 is: 207,206.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,953.90 : 232,102.80 = 138,332.70 : x
  2. Step 2: Convert to fraction form
    154,953.90/232,102.80 = 138,332.70/x
  3. Step 3: Cross multiply
    154,953.90x = 232,102.80 × 138,332.70
  4. Step 4: Simplify right side
    154,953.90x = 32,107,407,001.56
  5. Step 5: Solve for x
    x = 32,107,407,001.56/154,953.90
  6. Step 6: Final answer
    x = 207,206.19

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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.