Home / 131,018.42-180,806.02-74,432.90

Finding the Fourth Proportional to 131,018.42, 180,806.02 and 74,432.90

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Solution

The fourth proportional to 131,018.42, 180,806.02 and 74,432.90 is: 102,717.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,018.42 : 180,806.02 = 74,432.90 : x
  2. Step 2: Convert to fraction form
    131,018.42/180,806.02 = 74,432.90/x
  3. Step 3: Cross multiply
    131,018.42x = 180,806.02 × 74,432.90
  4. Step 4: Simplify right side
    131,018.42x = 13,457,915,315.95
  5. Step 5: Solve for x
    x = 13,457,915,315.95/131,018.42
  6. Step 6: Final answer
    x = 102,717.74

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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.