Home / 131,108.28-180,929.04-74,530.56

Finding the Fourth Proportional to 131,108.28, 180,929.04 and 74,530.56

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Solution

The fourth proportional to 131,108.28, 180,929.04 and 74,530.56 is: 102,851.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,108.28 : 180,929.04 = 74,530.56 : x
  2. Step 2: Convert to fraction form
    131,108.28/180,929.04 = 74,530.56/x
  3. Step 3: Cross multiply
    131,108.28x = 180,929.04 × 74,530.56
  4. Step 4: Simplify right side
    131,108.28x = 13,484,742,671.46
  5. Step 5: Solve for x
    x = 13,484,742,671.46/131,108.28
  6. Step 6: Final answer
    x = 102,851.95

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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.