Home / 101,860.23-140,565.75-56,538.10

Finding the Fourth Proportional to 101,860.23, 140,565.75 and 56,538.10

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Solution

The fourth proportional to 101,860.23, 140,565.75 and 56,538.10 is: 78,021.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,860.23 : 140,565.75 = 56,538.10 : x
  2. Step 2: Convert to fraction form
    101,860.23/140,565.75 = 56,538.10/x
  3. Step 3: Cross multiply
    101,860.23x = 140,565.75 × 56,538.10
  4. Step 4: Simplify right side
    101,860.23x = 7,947,320,393.76
  5. Step 5: Solve for x
    x = 7,947,320,393.76/101,860.23
  6. Step 6: Final answer
    x = 78,021.82

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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.