Home / 105,711.62-158,256.39-70,564.10

Finding the Fourth Proportional to 105,711.62, 158,256.39 and 70,564.10

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Solution

The fourth proportional to 105,711.62, 158,256.39 and 70,564.10 is: 105,638.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,711.62 : 158,256.39 = 70,564.10 : x
  2. Step 2: Convert to fraction form
    105,711.62/158,256.39 = 70,564.10/x
  3. Step 3: Cross multiply
    105,711.62x = 158,256.39 × 70,564.10
  4. Step 4: Simplify right side
    105,711.62x = 11,167,219,729.60
  5. Step 5: Solve for x
    x = 11,167,219,729.60/105,711.62
  6. Step 6: Final answer
    x = 105,638.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.