Home / 103,581.45-155,496.65-70,200.25

Finding the Fourth Proportional to 103,581.45, 155,496.65 and 70,200.25

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Solution

The fourth proportional to 103,581.45, 155,496.65 and 70,200.25 is: 105,384.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,581.45 : 155,496.65 = 70,200.25 : x
  2. Step 2: Convert to fraction form
    103,581.45/155,496.65 = 70,200.25/x
  3. Step 3: Cross multiply
    103,581.45x = 155,496.65 × 70,200.25
  4. Step 4: Simplify right side
    103,581.45x = 10,915,902,964.42
  5. Step 5: Solve for x
    x = 10,915,902,964.42/103,581.45
  6. Step 6: Final answer
    x = 105,384.73

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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.