Home / 138,593.46-191,258.97-74,931.24

Finding the Fourth Proportional to 138,593.46, 191,258.97 and 74,931.24

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Solution

The fourth proportional to 138,593.46, 191,258.97 and 74,931.24 is: 103,405.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,593.46 : 191,258.97 = 74,931.24 : x
  2. Step 2: Convert to fraction form
    138,593.46/191,258.97 = 74,931.24/x
  3. Step 3: Cross multiply
    138,593.46x = 191,258.97 × 74,931.24
  4. Step 4: Simplify right side
    138,593.46x = 14,331,271,783.22
  5. Step 5: Solve for x
    x = 14,331,271,783.22/138,593.46
  6. Step 6: Final answer
    x = 103,405.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.