Home / 109,515.71-151,096.28-61,109.81

Finding the Fourth Proportional to 109,515.71, 151,096.28 and 61,109.81

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Solution

The fourth proportional to 109,515.71, 151,096.28 and 61,109.81 is: 84,311.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,515.71 : 151,096.28 = 61,109.81 : x
  2. Step 2: Convert to fraction form
    109,515.71/151,096.28 = 61,109.81/x
  3. Step 3: Cross multiply
    109,515.71x = 151,096.28 × 61,109.81
  4. Step 4: Simplify right side
    109,515.71x = 9,233,463,901.48
  5. Step 5: Solve for x
    x = 9,233,463,901.48/109,515.71
  6. Step 6: Final answer
    x = 84,311.78

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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.