Home / 148,964.19-205,574.55-80,985.71

Finding the Fourth Proportional to 148,964.19, 205,574.55 and 80,985.71

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Solution

The fourth proportional to 148,964.19, 205,574.55 and 80,985.71 is: 111,762.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,964.19 : 205,574.55 = 80,985.71 : x
  2. Step 2: Convert to fraction form
    148,964.19/205,574.55 = 80,985.71/x
  3. Step 3: Cross multiply
    148,964.19x = 205,574.55 × 80,985.71
  4. Step 4: Simplify right side
    148,964.19x = 16,648,599,861.81
  5. Step 5: Solve for x
    x = 16,648,599,861.81/148,964.19
  6. Step 6: Final answer
    x = 111,762.43

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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.