Home / 113,103.40-169,660.68-42,988.12

Finding the Fourth Proportional to 113,103.40, 169,660.68 and 42,988.12

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Solution

The fourth proportional to 113,103.40, 169,660.68 and 42,988.12 is: 64,484.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,103.40 : 169,660.68 = 42,988.12 : x
  2. Step 2: Convert to fraction form
    113,103.40/169,660.68 = 42,988.12/x
  3. Step 3: Cross multiply
    113,103.40x = 169,660.68 × 42,988.12
  4. Step 4: Simplify right side
    113,103.40x = 7,293,393,671.12
  5. Step 5: Solve for x
    x = 7,293,393,671.12/113,103.40
  6. Step 6: Final answer
    x = 64,484.30

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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.