Home / 148,931.12-205,569.96-88,511.60

Finding the Fourth Proportional to 148,931.12, 205,569.96 and 88,511.60

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Solution

The fourth proportional to 148,931.12, 205,569.96 and 88,511.60 is: 122,172.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,931.12 : 205,569.96 = 88,511.60 : x
  2. Step 2: Convert to fraction form
    148,931.12/205,569.96 = 88,511.60/x
  3. Step 3: Cross multiply
    148,931.12x = 205,569.96 × 88,511.60
  4. Step 4: Simplify right side
    148,931.12x = 18,195,326,071.54
  5. Step 5: Solve for x
    x = 18,195,326,071.54/148,931.12
  6. Step 6: Final answer
    x = 122,172.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.