Home / 123,943.40-171,032.20-70,236.86

Finding the Fourth Proportional to 123,943.40, 171,032.20 and 70,236.86

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Solution

The fourth proportional to 123,943.40, 171,032.20 and 70,236.86 is: 96,921.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,943.40 : 171,032.20 = 70,236.86 : x
  2. Step 2: Convert to fraction form
    123,943.40/171,032.20 = 70,236.86/x
  3. Step 3: Cross multiply
    123,943.40x = 171,032.20 × 70,236.86
  4. Step 4: Simplify right side
    123,943.40x = 12,012,764,686.89
  5. Step 5: Solve for x
    x = 12,012,764,686.89/123,943.40
  6. Step 6: Final answer
    x = 96,921.37

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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.