Home / 106,982.63-147,641.10-64,540.25

Finding the Fourth Proportional to 106,982.63, 147,641.10 and 64,540.25

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Solution

The fourth proportional to 106,982.63, 147,641.10 and 64,540.25 is: 89,068.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,982.63 : 147,641.10 = 64,540.25 : x
  2. Step 2: Convert to fraction form
    106,982.63/147,641.10 = 64,540.25/x
  3. Step 3: Cross multiply
    106,982.63x = 147,641.10 × 64,540.25
  4. Step 4: Simplify right side
    106,982.63x = 9,528,793,504.28
  5. Step 5: Solve for x
    x = 9,528,793,504.28/106,982.63
  6. Step 6: Final answer
    x = 89,068.60

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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.