Home / 131,492.90-181,459.76-74,913.86

Finding the Fourth Proportional to 131,492.90, 181,459.76 and 74,913.86

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Solution

The fourth proportional to 131,492.90, 181,459.76 and 74,913.86 is: 103,380.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,492.90 : 181,459.76 = 74,913.86 : x
  2. Step 2: Convert to fraction form
    131,492.90/181,459.76 = 74,913.86/x
  3. Step 3: Cross multiply
    131,492.90x = 181,459.76 × 74,913.86
  4. Step 4: Simplify right side
    131,492.90x = 13,593,851,056.27
  5. Step 5: Solve for x
    x = 13,593,851,056.27/131,492.90
  6. Step 6: Final answer
    x = 103,380.87

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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.