Home / 103,624.36-155,211.90-64,191.40

Finding the Fourth Proportional to 103,624.36, 155,211.90 and 64,191.40

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Solution

The fourth proportional to 103,624.36, 155,211.90 and 64,191.40 is: 96,147.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,624.36 : 155,211.90 = 64,191.40 : x
  2. Step 2: Convert to fraction form
    103,624.36/155,211.90 = 64,191.40/x
  3. Step 3: Cross multiply
    103,624.36x = 155,211.90 × 64,191.40
  4. Step 4: Simplify right side
    103,624.36x = 9,963,269,157.66
  5. Step 5: Solve for x
    x = 9,963,269,157.66/103,624.36
  6. Step 6: Final answer
    x = 96,147.94

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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.