Home / 145,401.32-218,102.04-45,569.28

Finding the Fourth Proportional to 145,401.32, 218,102.04 and 45,569.28

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Solution

The fourth proportional to 145,401.32, 218,102.04 and 45,569.28 is: 68,353.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,401.32 : 218,102.04 = 45,569.28 : x
  2. Step 2: Convert to fraction form
    145,401.32/218,102.04 = 45,569.28/x
  3. Step 3: Cross multiply
    145,401.32x = 218,102.04 × 45,569.28
  4. Step 4: Simplify right side
    145,401.32x = 9,938,752,929.33
  5. Step 5: Solve for x
    x = 9,938,752,929.33/145,401.32
  6. Step 6: Final answer
    x = 68,353.94

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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.