Home / 140,887.35-194,424.10-76,358.50

Finding the Fourth Proportional to 140,887.35, 194,424.10 and 76,358.50

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Solution

The fourth proportional to 140,887.35, 194,424.10 and 76,358.50 is: 105,374.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,887.35 : 194,424.10 = 76,358.50 : x
  2. Step 2: Convert to fraction form
    140,887.35/194,424.10 = 76,358.50/x
  3. Step 3: Cross multiply
    140,887.35x = 194,424.10 × 76,358.50
  4. Step 4: Simplify right side
    140,887.35x = 14,845,931,962.89
  5. Step 5: Solve for x
    x = 14,845,931,962.89/140,887.35
  6. Step 6: Final answer
    x = 105,374.49

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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.