Home / 108,756.72-163,148.40-38,643.12

Finding the Fourth Proportional to 108,756.72, 163,148.40 and 38,643.12

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Solution

The fourth proportional to 108,756.72, 163,148.40 and 38,643.12 is: 57,969.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,756.72 : 163,148.40 = 38,643.12 : x
  2. Step 2: Convert to fraction form
    108,756.72/163,148.40 = 38,643.12/x
  3. Step 3: Cross multiply
    108,756.72x = 163,148.40 × 38,643.12
  4. Step 4: Simplify right side
    108,756.72x = 6,304,563,199.01
  5. Step 5: Solve for x
    x = 6,304,563,199.01/108,756.72
  6. Step 6: Final answer
    x = 57,969.41

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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.