Home / 198,904.32-274,463.64-118,335.24

Finding the Fourth Proportional to 198,904.32, 274,463.64 and 118,335.24

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Solution

The fourth proportional to 198,904.32, 274,463.64 and 118,335.24 is: 163,288.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,904.32 : 274,463.64 = 118,335.24 : x
  2. Step 2: Convert to fraction form
    198,904.32/274,463.64 = 118,335.24/x
  3. Step 3: Cross multiply
    198,904.32x = 274,463.64 × 118,335.24
  4. Step 4: Simplify right side
    198,904.32x = 32,478,720,710.67
  5. Step 5: Solve for x
    x = 32,478,720,710.67/198,904.32
  6. Step 6: Final answer
    x = 163,288.16

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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.