Home / 209,473.98-289,065.51-113,981.10

Finding the Fourth Proportional to 209,473.98, 289,065.51 and 113,981.10

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Solution

The fourth proportional to 209,473.98, 289,065.51 and 113,981.10 is: 157,289.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,473.98 : 289,065.51 = 113,981.10 : x
  2. Step 2: Convert to fraction form
    209,473.98/289,065.51 = 113,981.10/x
  3. Step 3: Cross multiply
    209,473.98x = 289,065.51 × 113,981.10
  4. Step 4: Simplify right side
    209,473.98x = 32,948,004,801.86
  5. Step 5: Solve for x
    x = 32,948,004,801.86/209,473.98
  6. Step 6: Final answer
    x = 157,289.25

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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.