Home / 103,920.33-143,397.87-58,595.61

Finding the Fourth Proportional to 103,920.33, 143,397.87 and 58,595.61

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Solution

The fourth proportional to 103,920.33, 143,397.87 and 58,595.61 is: 80,855.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,920.33 : 143,397.87 = 58,595.61 : x
  2. Step 2: Convert to fraction form
    103,920.33/143,397.87 = 58,595.61/x
  3. Step 3: Cross multiply
    103,920.33x = 143,397.87 × 58,595.61
  4. Step 4: Simplify right side
    103,920.33x = 8,402,485,665.35
  5. Step 5: Solve for x
    x = 8,402,485,665.35/103,920.33
  6. Step 6: Final answer
    x = 80,855.07

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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.