Home / 103,619.47-155,225.81-53,732.18

Finding the Fourth Proportional to 103,619.47, 155,225.81 and 53,732.18

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Solution

The fourth proportional to 103,619.47, 155,225.81 and 53,732.18 is: 80,492.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,619.47 : 155,225.81 = 53,732.18 : x
  2. Step 2: Convert to fraction form
    103,619.47/155,225.81 = 53,732.18/x
  3. Step 3: Cross multiply
    103,619.47x = 155,225.81 × 53,732.18
  4. Step 4: Simplify right side
    103,619.47x = 8,340,621,163.57
  5. Step 5: Solve for x
    x = 8,340,621,163.57/103,619.47
  6. Step 6: Final answer
    x = 80,492.80

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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.