Home / 117,142.64-175,712.41-28,396.95

Finding the Fourth Proportional to 117,142.64, 175,712.41 and 28,396.95

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Solution

The fourth proportional to 117,142.64, 175,712.41 and 28,396.95 is: 42,595.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,142.64 : 175,712.41 = 28,396.95 : x
  2. Step 2: Convert to fraction form
    117,142.64/175,712.41 = 28,396.95/x
  3. Step 3: Cross multiply
    117,142.64x = 175,712.41 × 28,396.95
  4. Step 4: Simplify right side
    117,142.64x = 4,989,696,521.15
  5. Step 5: Solve for x
    x = 4,989,696,521.15/117,142.64
  6. Step 6: Final answer
    x = 42,595.05

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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.