Home / 142,229.28-196,277.07-77,699.43

Finding the Fourth Proportional to 142,229.28, 196,277.07 and 77,699.43

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Solution

The fourth proportional to 142,229.28, 196,277.07 and 77,699.43 is: 107,225.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,229.28 : 196,277.07 = 77,699.43 : x
  2. Step 2: Convert to fraction form
    142,229.28/196,277.07 = 77,699.43/x
  3. Step 3: Cross multiply
    142,229.28x = 196,277.07 × 77,699.43
  4. Step 4: Simplify right side
    142,229.28x = 15,250,616,461.07
  5. Step 5: Solve for x
    x = 15,250,616,461.07/142,229.28
  6. Step 6: Final answer
    x = 107,225.58

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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.