Home / 209,423.37-289,001.07-113,927.88

Finding the Fourth Proportional to 209,423.37, 289,001.07 and 113,927.88

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Solution

The fourth proportional to 209,423.37, 289,001.07 and 113,927.88 is: 157,218.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,423.37 : 289,001.07 = 113,927.88 : x
  2. Step 2: Convert to fraction form
    209,423.37/289,001.07 = 113,927.88/x
  3. Step 3: Cross multiply
    209,423.37x = 289,001.07 × 113,927.88
  4. Step 4: Simplify right side
    209,423.37x = 32,925,279,222.83
  5. Step 5: Solve for x
    x = 32,925,279,222.83/209,423.37
  6. Step 6: Final answer
    x = 157,218.74

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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.