Home / 105,614.76-145,748.34-57,869.92

Finding the Fourth Proportional to 105,614.76, 145,748.34 and 57,869.92

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Solution

The fourth proportional to 105,614.76, 145,748.34 and 57,869.92 is: 79,860.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,614.76 : 145,748.34 = 57,869.92 : x
  2. Step 2: Convert to fraction form
    105,614.76/145,748.34 = 57,869.92/x
  3. Step 3: Cross multiply
    105,614.76x = 145,748.34 × 57,869.92
  4. Step 4: Simplify right side
    105,614.76x = 8,434,444,775.93
  5. Step 5: Solve for x
    x = 8,434,444,775.93/105,614.76
  6. Step 6: Final answer
    x = 79,860.47

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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.