Home / 108,955.07-163,441.10-42,390.08

Finding the Fourth Proportional to 108,955.07, 163,441.10 and 42,390.08

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Solution

The fourth proportional to 108,955.07, 163,441.10 and 42,390.08 is: 63,588.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,955.07 : 163,441.10 = 42,390.08 : x
  2. Step 2: Convert to fraction form
    108,955.07/163,441.10 = 42,390.08/x
  3. Step 3: Cross multiply
    108,955.07x = 163,441.10 × 42,390.08
  4. Step 4: Simplify right side
    108,955.07x = 6,928,280,593.06
  5. Step 5: Solve for x
    x = 6,928,280,593.06/108,955.07
  6. Step 6: Final answer
    x = 63,588.42

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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.