Home / 101,945.32-140,686.18-57,232.36

Finding the Fourth Proportional to 101,945.32, 140,686.18 and 57,232.36

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Solution

The fourth proportional to 101,945.32, 140,686.18 and 57,232.36 is: 78,981.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,945.32 : 140,686.18 = 57,232.36 : x
  2. Step 2: Convert to fraction form
    101,945.32/140,686.18 = 57,232.36/x
  3. Step 3: Cross multiply
    101,945.32x = 140,686.18 × 57,232.36
  4. Step 4: Simplify right side
    101,945.32x = 8,051,802,100.78
  5. Step 5: Solve for x
    x = 8,051,802,100.78/101,945.32
  6. Step 6: Final answer
    x = 78,981.58

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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.