Home / 209,443.32-289,037.70-113,956.20

Finding the Fourth Proportional to 209,443.32, 289,037.70 and 113,956.20

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Solution

The fourth proportional to 209,443.32, 289,037.70 and 113,956.20 is: 157,262.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,443.32 : 289,037.70 = 113,956.20 : x
  2. Step 2: Convert to fraction form
    209,443.32/289,037.70 = 113,956.20/x
  3. Step 3: Cross multiply
    209,443.32x = 289,037.70 × 113,956.20
  4. Step 4: Simplify right side
    209,443.32x = 32,937,637,948.74
  5. Step 5: Solve for x
    x = 32,937,637,948.74/209,443.32
  6. Step 6: Final answer
    x = 157,262.78

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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.