Home / 115,916.89-159,965.28-70,594.86

Finding the Fourth Proportional to 115,916.89, 159,965.28 and 70,594.86

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Solution

The fourth proportional to 115,916.89, 159,965.28 and 70,594.86 is: 97,420.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,916.89 : 159,965.28 = 70,594.86 : x
  2. Step 2: Convert to fraction form
    115,916.89/159,965.28 = 70,594.86/x
  3. Step 3: Cross multiply
    115,916.89x = 159,965.28 × 70,594.86
  4. Step 4: Simplify right side
    115,916.89x = 11,292,726,546.46
  5. Step 5: Solve for x
    x = 11,292,726,546.46/115,916.89
  6. Step 6: Final answer
    x = 97,420.89

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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.