Home / 142,948.83-197,293.01-79,307.13

Finding the Fourth Proportional to 142,948.83, 197,293.01 and 79,307.13

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Solution

The fourth proportional to 142,948.83, 197,293.01 and 79,307.13 is: 109,456.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,948.83 : 197,293.01 = 79,307.13 : x
  2. Step 2: Convert to fraction form
    142,948.83/197,293.01 = 79,307.13/x
  3. Step 3: Cross multiply
    142,948.83x = 197,293.01 × 79,307.13
  4. Step 4: Simplify right side
    142,948.83x = 15,646,741,995.63
  5. Step 5: Solve for x
    x = 15,646,741,995.63/142,948.83
  6. Step 6: Final answer
    x = 109,456.94

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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.