Home / 156,327.84-215,719.64-88,350.64

Finding the Fourth Proportional to 156,327.84, 215,719.64 and 88,350.64

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Solution

The fourth proportional to 156,327.84, 215,719.64 and 88,350.64 is: 121,916.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,327.84 : 215,719.64 = 88,350.64 : x
  2. Step 2: Convert to fraction form
    156,327.84/215,719.64 = 88,350.64/x
  3. Step 3: Cross multiply
    156,327.84x = 215,719.64 × 88,350.64
  4. Step 4: Simplify right side
    156,327.84x = 19,058,968,254.57
  5. Step 5: Solve for x
    x = 19,058,968,254.57/156,327.84
  6. Step 6: Final answer
    x = 121,916.66

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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.