Home / 142,007.27-195,960.33-78,346.13

Finding the Fourth Proportional to 142,007.27, 195,960.33 and 78,346.13

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Solution

The fourth proportional to 142,007.27, 195,960.33 and 78,346.13 is: 108,112.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,007.27 : 195,960.33 = 78,346.13 : x
  2. Step 2: Convert to fraction form
    142,007.27/195,960.33 = 78,346.13/x
  3. Step 3: Cross multiply
    142,007.27x = 195,960.33 × 78,346.13
  4. Step 4: Simplify right side
    142,007.27x = 15,352,732,509.22
  5. Step 5: Solve for x
    x = 15,352,732,509.22/142,007.27
  6. Step 6: Final answer
    x = 108,112.30

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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.