Home / 148,666.19-205,155.81-80,680.26

Finding the Fourth Proportional to 148,666.19, 205,155.81 and 80,680.26

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Solution

The fourth proportional to 148,666.19, 205,155.81 and 80,680.26 is: 111,336.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,666.19 : 205,155.81 = 80,680.26 : x
  2. Step 2: Convert to fraction form
    148,666.19/205,155.81 = 80,680.26/x
  3. Step 3: Cross multiply
    148,666.19x = 205,155.81 × 80,680.26
  4. Step 4: Simplify right side
    148,666.19x = 16,552,024,091.31
  5. Step 5: Solve for x
    x = 16,552,024,091.31/148,666.19
  6. Step 6: Final answer
    x = 111,336.84

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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.