Home / 148,669.20-205,159.95-80,683.26

Finding the Fourth Proportional to 148,669.20, 205,159.95 and 80,683.26

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Solution

The fourth proportional to 148,669.20, 205,159.95 and 80,683.26 is: 111,340.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,669.20 : 205,159.95 = 80,683.26 : x
  2. Step 2: Convert to fraction form
    148,669.20/205,159.95 = 80,683.26/x
  3. Step 3: Cross multiply
    148,669.20x = 205,159.95 × 80,683.26
  4. Step 4: Simplify right side
    148,669.20x = 16,552,973,587.44
  5. Step 5: Solve for x
    x = 16,552,973,587.44/148,669.20
  6. Step 6: Final answer
    x = 111,340.97

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1.5x scale

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.