Home / 142,772.90-197,023.65-79,110.14

Finding the Fourth Proportional to 142,772.90, 197,023.65 and 79,110.14

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Solution

The fourth proportional to 142,772.90, 197,023.65 and 79,110.14 is: 109,170.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,772.90 : 197,023.65 = 79,110.14 : x
  2. Step 2: Convert to fraction form
    142,772.90/197,023.65 = 79,110.14/x
  3. Step 3: Cross multiply
    142,772.90x = 197,023.65 × 79,110.14
  4. Step 4: Simplify right side
    142,772.90x = 15,586,568,534.81
  5. Step 5: Solve for x
    x = 15,586,568,534.81/142,772.90
  6. Step 6: Final answer
    x = 109,170.36

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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.