Home / 205,763.74-308,365.20-99,140.02

Finding the Fourth Proportional to 205,763.74, 308,365.20 and 99,140.02

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Solution

The fourth proportional to 205,763.74, 308,365.20 and 99,140.02 is: 148,574.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,763.74 : 308,365.20 = 99,140.02 : x
  2. Step 2: Convert to fraction form
    205,763.74/308,365.20 = 99,140.02/x
  3. Step 3: Cross multiply
    205,763.74x = 308,365.20 × 99,140.02
  4. Step 4: Simplify right side
    205,763.74x = 30,571,332,095.30
  5. Step 5: Solve for x
    x = 30,571,332,095.30/205,763.74
  6. Step 6: Final answer
    x = 148,574.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.