Home / 114,719.21-172,188.26-70,432.46

Finding the Fourth Proportional to 114,719.21, 172,188.26 and 70,432.46

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Solution

The fourth proportional to 114,719.21, 172,188.26 and 70,432.46 is: 105,715.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,719.21 : 172,188.26 = 70,432.46 : x
  2. Step 2: Convert to fraction form
    114,719.21/172,188.26 = 70,432.46/x
  3. Step 3: Cross multiply
    114,719.21x = 172,188.26 × 70,432.46
  4. Step 4: Simplify right side
    114,719.21x = 12,127,642,734.92
  5. Step 5: Solve for x
    x = 12,127,642,734.92/114,719.21
  6. Step 6: Final answer
    x = 105,715.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.