Home / 79,688.17-118,949.21-70,229.95

Finding the Fourth Proportional to 79,688.17, 118,949.21 and 70,229.95

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Solution

The fourth proportional to 79,688.17, 118,949.21 and 70,229.95 is: 104,831.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,688.17 : 118,949.21 = 70,229.95 : x
  2. Step 2: Convert to fraction form
    79,688.17/118,949.21 = 70,229.95/x
  3. Step 3: Cross multiply
    79,688.17x = 118,949.21 × 70,229.95
  4. Step 4: Simplify right side
    79,688.17x = 8,353,797,070.84
  5. Step 5: Solve for x
    x = 8,353,797,070.84/79,688.17
  6. Step 6: Final answer
    x = 104,831.08

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.