Home / 153,125.20-229,039.80-137,443.60

Finding the Fourth Proportional to 153,125.20, 229,039.80 and 137,443.60

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Solution

The fourth proportional to 153,125.20, 229,039.80 and 137,443.60 is: 205,583.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,125.20 : 229,039.80 = 137,443.60 : x
  2. Step 2: Convert to fraction form
    153,125.20/229,039.80 = 137,443.60/x
  3. Step 3: Cross multiply
    153,125.20x = 229,039.80 × 137,443.60
  4. Step 4: Simplify right side
    153,125.20x = 31,480,054,655.28
  5. Step 5: Solve for x
    x = 31,480,054,655.28/153,125.20
  6. Step 6: Final answer
    x = 205,583.76

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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.