Home / 129,358.50-194,038.64-49,374.90

Finding the Fourth Proportional to 129,358.50, 194,038.64 and 49,374.90

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Solution

The fourth proportional to 129,358.50, 194,038.64 and 49,374.90 is: 74,062.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,358.50 : 194,038.64 = 49,374.90 : x
  2. Step 2: Convert to fraction form
    129,358.50/194,038.64 = 49,374.90/x
  3. Step 3: Cross multiply
    129,358.50x = 194,038.64 × 49,374.90
  4. Step 4: Simplify right side
    129,358.50x = 9,580,638,199.26
  5. Step 5: Solve for x
    x = 9,580,638,199.26/129,358.50
  6. Step 6: Final answer
    x = 74,062.69

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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.