Home / 145,569.18-218,353.86-40,388.28

Finding the Fourth Proportional to 145,569.18, 218,353.86 and 40,388.28

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Solution

The fourth proportional to 145,569.18, 218,353.86 and 40,388.28 is: 60,582.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,569.18 : 218,353.86 = 40,388.28 : x
  2. Step 2: Convert to fraction form
    145,569.18/218,353.86 = 40,388.28/x
  3. Step 3: Cross multiply
    145,569.18x = 218,353.86 × 40,388.28
  4. Step 4: Simplify right side
    145,569.18x = 8,818,936,836.76
  5. Step 5: Solve for x
    x = 8,818,936,836.76/145,569.18
  6. Step 6: Final answer
    x = 60,582.44

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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.