Home / 209,101.28-288,560.07-113,607.95

Finding the Fourth Proportional to 209,101.28, 288,560.07 and 113,607.95

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Solution

The fourth proportional to 209,101.28, 288,560.07 and 113,607.95 is: 156,779.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,101.28 : 288,560.07 = 113,607.95 : x
  2. Step 2: Convert to fraction form
    209,101.28/288,560.07 = 113,607.95/x
  3. Step 3: Cross multiply
    209,101.28x = 288,560.07 × 113,607.95
  4. Step 4: Simplify right side
    209,101.28x = 32,782,716,561.76
  5. Step 5: Solve for x
    x = 32,782,716,561.76/209,101.28
  6. Step 6: Final answer
    x = 156,779.13

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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.