Home / 103,986.33-143,501.22-56,239.62

Finding the Fourth Proportional to 103,986.33, 143,501.22 and 56,239.62

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Solution

The fourth proportional to 103,986.33, 143,501.22 and 56,239.62 is: 77,610.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,986.33 : 143,501.22 = 56,239.62 : x
  2. Step 2: Convert to fraction form
    103,986.33/143,501.22 = 56,239.62/x
  3. Step 3: Cross multiply
    103,986.33x = 143,501.22 × 56,239.62
  4. Step 4: Simplify right side
    103,986.33x = 8,070,454,082.34
  5. Step 5: Solve for x
    x = 8,070,454,082.34/103,986.33
  6. Step 6: Final answer
    x = 77,610.72

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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.