Home / 113,315.80-169,968.30-38,428.60

Finding the Fourth Proportional to 113,315.80, 169,968.30 and 38,428.60

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Solution

The fourth proportional to 113,315.80, 169,968.30 and 38,428.60 is: 57,641.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,315.80 : 169,968.30 = 38,428.60 : x
  2. Step 2: Convert to fraction form
    113,315.80/169,968.30 = 38,428.60/x
  3. Step 3: Cross multiply
    113,315.80x = 169,968.30 × 38,428.60
  4. Step 4: Simplify right side
    113,315.80x = 6,531,643,813.38
  5. Step 5: Solve for x
    x = 6,531,643,813.38/113,315.80
  6. Step 6: Final answer
    x = 57,641.07

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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.