Home / 209,459.32-289,055.12-113,966.72

Finding the Fourth Proportional to 209,459.32, 289,055.12 and 113,966.72

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Solution

The fourth proportional to 209,459.32, 289,055.12 and 113,966.72 is: 157,274.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,459.32 : 289,055.12 = 113,966.72 : x
  2. Step 2: Convert to fraction form
    209,459.32/289,055.12 = 113,966.72/x
  3. Step 3: Cross multiply
    209,459.32x = 289,055.12 × 113,966.72
  4. Step 4: Simplify right side
    209,459.32x = 32,942,663,925.61
  5. Step 5: Solve for x
    x = 32,942,663,925.61/209,459.32
  6. Step 6: Final answer
    x = 157,274.76

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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.