Home / 108,826.81-163,163.67-42,210.79

Finding the Fourth Proportional to 108,826.81, 163,163.67 and 42,210.79

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Solution

The fourth proportional to 108,826.81, 163,163.67 and 42,210.79 is: 63,286.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,826.81 : 163,163.67 = 42,210.79 : x
  2. Step 2: Convert to fraction form
    108,826.81/163,163.67 = 42,210.79/x
  3. Step 3: Cross multiply
    108,826.81x = 163,163.67 × 42,210.79
  4. Step 4: Simplify right side
    108,826.81x = 6,887,267,613.95
  5. Step 5: Solve for x
    x = 6,887,267,613.95/108,826.81
  6. Step 6: Final answer
    x = 63,286.50

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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.