Home / 115,638.88-159,572.85-70,310.57

Finding the Fourth Proportional to 115,638.88, 159,572.85 and 70,310.57

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Solution

The fourth proportional to 115,638.88, 159,572.85 and 70,310.57 is: 97,023.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,638.88 : 159,572.85 = 70,310.57 : x
  2. Step 2: Convert to fraction form
    115,638.88/159,572.85 = 70,310.57/x
  3. Step 3: Cross multiply
    115,638.88x = 159,572.85 × 70,310.57
  4. Step 4: Simplify right side
    115,638.88x = 11,219,657,576.89
  5. Step 5: Solve for x
    x = 11,219,657,576.89/115,638.88
  6. Step 6: Final answer
    x = 97,023.23

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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.