Home / 198,838.95-274,402.45-112,803.74

Finding the Fourth Proportional to 198,838.95, 274,402.45 and 112,803.74

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Solution

The fourth proportional to 198,838.95, 274,402.45 and 112,803.74 is: 155,671.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,838.95 : 274,402.45 = 112,803.74 : x
  2. Step 2: Convert to fraction form
    198,838.95/274,402.45 = 112,803.74/x
  3. Step 3: Cross multiply
    198,838.95x = 274,402.45 × 112,803.74
  4. Step 4: Simplify right side
    198,838.95x = 30,953,621,788.64
  5. Step 5: Solve for x
    x = 30,953,621,788.64/198,838.95
  6. Step 6: Final answer
    x = 155,671.82

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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.