Home / 142,943.25-197,263.23-79,285.14

Finding the Fourth Proportional to 142,943.25, 197,263.23 and 79,285.14

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Solution

The fourth proportional to 142,943.25, 197,263.23 and 79,285.14 is: 109,414.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,943.25 : 197,263.23 = 79,285.14 : x
  2. Step 2: Convert to fraction form
    142,943.25/197,263.23 = 79,285.14/x
  3. Step 3: Cross multiply
    142,943.25x = 197,263.23 × 79,285.14
  4. Step 4: Simplify right side
    142,943.25x = 15,640,042,807.40
  5. Step 5: Solve for x
    x = 15,640,042,807.40/142,943.25
  6. Step 6: Final answer
    x = 109,414.35

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1.5x scale

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.