Home / 109,547.92-151,183.20-61,783.84

Finding the Fourth Proportional to 109,547.92, 151,183.20 and 61,783.84

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Solution

The fourth proportional to 109,547.92, 151,183.20 and 61,783.84 is: 85,265.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,547.92 : 151,183.20 = 61,783.84 : x
  2. Step 2: Convert to fraction form
    109,547.92/151,183.20 = 61,783.84/x
  3. Step 3: Cross multiply
    109,547.92x = 151,183.20 × 61,783.84
  4. Step 4: Simplify right side
    109,547.92x = 9,340,678,639.49
  5. Step 5: Solve for x
    x = 9,340,678,639.49/109,547.92
  6. Step 6: Final answer
    x = 85,265.69

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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.