Home / 105,614.75-145,748.40-57,869.93

Finding the Fourth Proportional to 105,614.75, 145,748.40 and 57,869.93

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Solution

The fourth proportional to 105,614.75, 145,748.40 and 57,869.93 is: 79,860.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,614.75 : 145,748.40 = 57,869.93 : x
  2. Step 2: Convert to fraction form
    105,614.75/145,748.40 = 57,869.93/x
  3. Step 3: Cross multiply
    105,614.75x = 145,748.40 × 57,869.93
  4. Step 4: Simplify right side
    105,614.75x = 8,434,449,705.61
  5. Step 5: Solve for x
    x = 8,434,449,705.61/105,614.75
  6. Step 6: Final answer
    x = 79,860.53

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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.