Home / 103,677.20-143,074.38-58,355.51

Finding the Fourth Proportional to 103,677.20, 143,074.38 and 58,355.51

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Solution

The fourth proportional to 103,677.20, 143,074.38 and 58,355.51 is: 80,530.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,677.20 : 143,074.38 = 58,355.51 : x
  2. Step 2: Convert to fraction form
    103,677.20/143,074.38 = 58,355.51/x
  3. Step 3: Cross multiply
    103,677.20x = 143,074.38 × 58,355.51
  4. Step 4: Simplify right side
    103,677.20x = 8,349,178,412.83
  5. Step 5: Solve for x
    x = 8,349,178,412.83/103,677.20
  6. Step 6: Final answer
    x = 80,530.52

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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.