Home / 142,959.47-197,284.27-79,297.27

Finding the Fourth Proportional to 142,959.47, 197,284.27 and 79,297.27

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Solution

The fourth proportional to 142,959.47, 197,284.27 and 79,297.27 is: 109,430.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,959.47 : 197,284.27 = 79,297.27 : x
  2. Step 2: Convert to fraction form
    142,959.47/197,284.27 = 79,297.27/x
  3. Step 3: Cross multiply
    142,959.47x = 197,284.27 × 79,297.27
  4. Step 4: Simplify right side
    142,959.47x = 15,644,103,333.49
  5. Step 5: Solve for x
    x = 15,644,103,333.49/142,959.47
  6. Step 6: Final answer
    x = 109,430.34

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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.