Home / 209,424.37-289,002.45-113,928.88

Finding the Fourth Proportional to 209,424.37, 289,002.45 and 113,928.88

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Solution

The fourth proportional to 209,424.37, 289,002.45 and 113,928.88 is: 157,220.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,424.37 : 289,002.45 = 113,928.88 : x
  2. Step 2: Convert to fraction form
    209,424.37/289,002.45 = 113,928.88/x
  3. Step 3: Cross multiply
    209,424.37x = 289,002.45 × 113,928.88
  4. Step 4: Simplify right side
    209,424.37x = 32,925,725,445.76
  5. Step 5: Solve for x
    x = 32,925,725,445.76/209,424.37
  6. Step 6: Final answer
    x = 157,220.12

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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.