Home / 103,690.29-155,406.03-44,457.21

Finding the Fourth Proportional to 103,690.29, 155,406.03 and 44,457.21

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Solution

The fourth proportional to 103,690.29, 155,406.03 and 44,457.21 is: 66,630.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,690.29 : 155,406.03 = 44,457.21 : x
  2. Step 2: Convert to fraction form
    103,690.29/155,406.03 = 44,457.21/x
  3. Step 3: Cross multiply
    103,690.29x = 155,406.03 × 44,457.21
  4. Step 4: Simplify right side
    103,690.29x = 6,908,918,510.98
  5. Step 5: Solve for x
    x = 6,908,918,510.98/103,690.29
  6. Step 6: Final answer
    x = 66,630.33

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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.