Home / 109,931.40-164,825.10-43,331.40

Finding the Fourth Proportional to 109,931.40, 164,825.10 and 43,331.40

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Solution

The fourth proportional to 109,931.40, 164,825.10 and 43,331.40 is: 64,968.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,931.40 : 164,825.10 = 43,331.40 : x
  2. Step 2: Convert to fraction form
    109,931.40/164,825.10 = 43,331.40/x
  3. Step 3: Cross multiply
    109,931.40x = 164,825.10 × 43,331.40
  4. Step 4: Simplify right side
    109,931.40x = 7,142,102,338.14
  5. Step 5: Solve for x
    x = 7,142,102,338.14/109,931.40
  6. Step 6: Final answer
    x = 64,968.72

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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.