Home / 143,141.12-197,587.85-122,916.77

Finding the Fourth Proportional to 143,141.12, 197,587.85 and 122,916.77

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Solution

The fourth proportional to 143,141.12, 197,587.85 and 122,916.77 is: 169,670.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,141.12 : 197,587.85 = 122,916.77 : x
  2. Step 2: Convert to fraction form
    143,141.12/197,587.85 = 122,916.77/x
  3. Step 3: Cross multiply
    143,141.12x = 197,587.85 × 122,916.77
  4. Step 4: Simplify right side
    143,141.12x = 24,286,858,710.72
  5. Step 5: Solve for x
    x = 24,286,858,710.72/143,141.12
  6. Step 6: Final answer
    x = 169,670.74

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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.