Home / 103,764.62-155,423.36-70,301.10

Finding the Fourth Proportional to 103,764.62, 155,423.36 and 70,301.10

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Solution

The fourth proportional to 103,764.62, 155,423.36 and 70,301.10 is: 105,300.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,764.62 : 155,423.36 = 70,301.10 : x
  2. Step 2: Convert to fraction form
    103,764.62/155,423.36 = 70,301.10/x
  3. Step 3: Cross multiply
    103,764.62x = 155,423.36 × 70,301.10
  4. Step 4: Simplify right side
    103,764.62x = 10,926,433,173.70
  5. Step 5: Solve for x
    x = 10,926,433,173.70/103,764.62
  6. Step 6: Final answer
    x = 105,300.18

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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.