Home / 142,931.12-197,083.40-91,179.18

Finding the Fourth Proportional to 142,931.12, 197,083.40 and 91,179.18

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Solution

The fourth proportional to 142,931.12, 197,083.40 and 91,179.18 is: 125,724.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,931.12 : 197,083.40 = 91,179.18 : x
  2. Step 2: Convert to fraction form
    142,931.12/197,083.40 = 91,179.18/x
  3. Step 3: Cross multiply
    142,931.12x = 197,083.40 × 91,179.18
  4. Step 4: Simplify right side
    142,931.12x = 17,969,902,347.72
  5. Step 5: Solve for x
    x = 17,969,902,347.72/142,931.12
  6. Step 6: Final answer
    x = 125,724.22

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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.