Home / 142,801.02-197,062.38-79,138.26

Finding the Fourth Proportional to 142,801.02, 197,062.38 and 79,138.26

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Solution

The fourth proportional to 142,801.02, 197,062.38 and 79,138.26 is: 109,209.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,801.02 : 197,062.38 = 79,138.26 : x
  2. Step 2: Convert to fraction form
    142,801.02/197,062.38 = 79,138.26/x
  3. Step 3: Cross multiply
    142,801.02x = 197,062.38 × 79,138.26
  4. Step 4: Simplify right side
    142,801.02x = 15,595,173,864.66
  5. Step 5: Solve for x
    x = 15,595,173,864.66/142,801.02
  6. Step 6: Final answer
    x = 109,209.12

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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.