Home / 165,612.88-248,423.40-60,431.81

Finding the Fourth Proportional to 165,612.88, 248,423.40 and 60,431.81

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Solution

The fourth proportional to 165,612.88, 248,423.40 and 60,431.81 is: 90,649.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,612.88 : 248,423.40 = 60,431.81 : x
  2. Step 2: Convert to fraction form
    165,612.88/248,423.40 = 60,431.81/x
  3. Step 3: Cross multiply
    165,612.88x = 248,423.40 × 60,431.81
  4. Step 4: Simplify right side
    165,612.88x = 15,012,676,329.41
  5. Step 5: Solve for x
    x = 15,012,676,329.41/165,612.88
  6. Step 6: Final answer
    x = 90,649.21

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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.