Home / 142,989.15-197,325.27-79,326.93

Finding the Fourth Proportional to 142,989.15, 197,325.27 and 79,326.93

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Solution

The fourth proportional to 142,989.15, 197,325.27 and 79,326.93 is: 109,471.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,989.15 : 197,325.27 = 79,326.93 : x
  2. Step 2: Convert to fraction form
    142,989.15/197,325.27 = 79,326.93/x
  3. Step 3: Cross multiply
    142,989.15x = 197,325.27 × 79,326.93
  4. Step 4: Simplify right side
    142,989.15x = 15,653,207,880.52
  5. Step 5: Solve for x
    x = 15,653,207,880.52/142,989.15
  6. Step 6: Final answer
    x = 109,471.30

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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.