Home / 107,538.77-161,275.35-28,642.73

Finding the Fourth Proportional to 107,538.77, 161,275.35 and 28,642.73

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Solution

The fourth proportional to 107,538.77, 161,275.35 and 28,642.73 is: 42,955.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,538.77 : 161,275.35 = 28,642.73 : x
  2. Step 2: Convert to fraction form
    107,538.77/161,275.35 = 28,642.73/x
  3. Step 3: Cross multiply
    107,538.77x = 161,275.35 × 28,642.73
  4. Step 4: Simplify right side
    107,538.77x = 4,619,366,305.71
  5. Step 5: Solve for x
    x = 4,619,366,305.71/107,538.77
  6. Step 6: Final answer
    x = 42,955.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.