Home / 103,633.35-155,358.90-70,245.15

Finding the Fourth Proportional to 103,633.35, 155,358.90 and 70,245.15

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Solution

The fourth proportional to 103,633.35, 155,358.90 and 70,245.15 is: 105,305.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,633.35 : 155,358.90 = 70,245.15 : x
  2. Step 2: Convert to fraction form
    103,633.35/155,358.90 = 70,245.15/x
  3. Step 3: Cross multiply
    103,633.35x = 155,358.90 × 70,245.15
  4. Step 4: Simplify right side
    103,633.35x = 10,913,209,234.34
  5. Step 5: Solve for x
    x = 10,913,209,234.34/103,633.35
  6. Step 6: Final answer
    x = 105,305.96

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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.