Home / 198,904.08-274,521.72-127,280.64

Finding the Fourth Proportional to 198,904.08, 274,521.72 and 127,280.64

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Solution

The fourth proportional to 198,904.08, 274,521.72 and 127,280.64 is: 175,669.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,904.08 : 274,521.72 = 127,280.64 : x
  2. Step 2: Convert to fraction form
    198,904.08/274,521.72 = 127,280.64/x
  3. Step 3: Cross multiply
    198,904.08x = 274,521.72 × 127,280.64
  4. Step 4: Simplify right side
    198,904.08x = 34,941,300,215.50
  5. Step 5: Solve for x
    x = 34,941,300,215.50/198,904.08
  6. Step 6: Final answer
    x = 175,669.10

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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.