Home / 145,637.76-218,479.68-52,141.44

Finding the Fourth Proportional to 145,637.76, 218,479.68 and 52,141.44

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Solution

The fourth proportional to 145,637.76, 218,479.68 and 52,141.44 is: 78,220.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,637.76 : 218,479.68 = 52,141.44 : x
  2. Step 2: Convert to fraction form
    145,637.76/218,479.68 = 52,141.44/x
  3. Step 3: Cross multiply
    145,637.76x = 218,479.68 × 52,141.44
  4. Step 4: Simplify right side
    145,637.76x = 11,391,845,125.94
  5. Step 5: Solve for x
    x = 11,391,845,125.94/145,637.76
  6. Step 6: Final answer
    x = 78,220.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.