Home / 148,845.16-205,400.10-88,421.32

Finding the Fourth Proportional to 148,845.16, 205,400.10 and 88,421.32

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Solution

The fourth proportional to 148,845.16, 205,400.10 and 88,421.32 is: 122,017.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,845.16 : 205,400.10 = 88,421.32 : x
  2. Step 2: Convert to fraction form
    148,845.16/205,400.10 = 88,421.32/x
  3. Step 3: Cross multiply
    148,845.16x = 205,400.10 × 88,421.32
  4. Step 4: Simplify right side
    148,845.16x = 18,161,747,970.13
  5. Step 5: Solve for x
    x = 18,161,747,970.13/148,845.16
  6. Step 6: Final answer
    x = 122,017.73

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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.