Home / 103,823.22-143,277.39-61,381.38

Finding the Fourth Proportional to 103,823.22, 143,277.39 and 61,381.38

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Solution

The fourth proportional to 103,823.22, 143,277.39 and 61,381.38 is: 84,707.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,823.22 : 143,277.39 = 61,381.38 : x
  2. Step 2: Convert to fraction form
    103,823.22/143,277.39 = 61,381.38/x
  3. Step 3: Cross multiply
    103,823.22x = 143,277.39 × 61,381.38
  4. Step 4: Simplify right side
    103,823.22x = 8,794,563,921.00
  5. Step 5: Solve for x
    x = 8,794,563,921.00/103,823.22
  6. Step 6: Final answer
    x = 84,707.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.