Home / 103,648.22-143,041.77-58,330.54

Finding the Fourth Proportional to 103,648.22, 143,041.77 and 58,330.54

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Solution

The fourth proportional to 103,648.22, 143,041.77 and 58,330.54 is: 80,500.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,648.22 : 143,041.77 = 58,330.54 : x
  2. Step 2: Convert to fraction form
    103,648.22/143,041.77 = 58,330.54/x
  3. Step 3: Cross multiply
    103,648.22x = 143,041.77 × 58,330.54
  4. Step 4: Simplify right side
    103,648.22x = 8,343,703,686.66
  5. Step 5: Solve for x
    x = 8,343,703,686.66/103,648.22
  6. Step 6: Final answer
    x = 80,500.21

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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.