Home / 87,207.40-130,676.70-64,916.20

Finding the Fourth Proportional to 87,207.40, 130,676.70 and 64,916.20

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Solution

The fourth proportional to 87,207.40, 130,676.70 and 64,916.20 is: 97,274.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,207.40 : 130,676.70 = 64,916.20 : x
  2. Step 2: Convert to fraction form
    87,207.40/130,676.70 = 64,916.20/x
  3. Step 3: Cross multiply
    87,207.40x = 130,676.70 × 64,916.20
  4. Step 4: Simplify right side
    87,207.40x = 8,483,034,792.54
  5. Step 5: Solve for x
    x = 8,483,034,792.54/87,207.40
  6. Step 6: Final answer
    x = 97,274.25

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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.