Home / 147,431.90-220,823.70-121,841.39

Finding the Fourth Proportional to 147,431.90, 220,823.70 and 121,841.39

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Solution

The fourth proportional to 147,431.90, 220,823.70 and 121,841.39 is: 182,494.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,431.90 : 220,823.70 = 121,841.39 : x
  2. Step 2: Convert to fraction form
    147,431.90/220,823.70 = 121,841.39/x
  3. Step 3: Cross multiply
    147,431.90x = 220,823.70 × 121,841.39
  4. Step 4: Simplify right side
    147,431.90x = 26,905,465,448.82
  5. Step 5: Solve for x
    x = 26,905,465,448.82/147,431.90
  6. Step 6: Final answer
    x = 182,494.20

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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.