Home / 103,900.06-143,374.89-58,579.66

Finding the Fourth Proportional to 103,900.06, 143,374.89 and 58,579.66

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Solution

The fourth proportional to 103,900.06, 143,374.89 and 58,579.66 is: 80,835.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,900.06 : 143,374.89 = 58,579.66 : x
  2. Step 2: Convert to fraction form
    103,900.06/143,374.89 = 58,579.66/x
  3. Step 3: Cross multiply
    103,900.06x = 143,374.89 × 58,579.66
  4. Step 4: Simplify right side
    103,900.06x = 8,398,852,308.74
  5. Step 5: Solve for x
    x = 8,398,852,308.74/103,900.06
  6. Step 6: Final answer
    x = 80,835.88

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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.