Home / 140,108.23-193,349.32-76,446.28

Finding the Fourth Proportional to 140,108.23, 193,349.32 and 76,446.28

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Solution

The fourth proportional to 140,108.23, 193,349.32 and 76,446.28 is: 105,495.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,108.23 : 193,349.32 = 76,446.28 : x
  2. Step 2: Convert to fraction form
    140,108.23/193,349.32 = 76,446.28/x
  3. Step 3: Cross multiply
    140,108.23x = 193,349.32 × 76,446.28
  4. Step 4: Simplify right side
    140,108.23x = 14,780,836,254.53
  5. Step 5: Solve for x
    x = 14,780,836,254.53/140,108.23
  6. Step 6: Final answer
    x = 105,495.85

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1.5x scale

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.