Home / 108,965.61-163,694.47-64,621.46

Finding the Fourth Proportional to 108,965.61, 163,694.47 and 64,621.46

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Solution

The fourth proportional to 108,965.61, 163,694.47 and 64,621.46 is: 97,078.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,965.61 : 163,694.47 = 64,621.46 : x
  2. Step 2: Convert to fraction form
    108,965.61/163,694.47 = 64,621.46/x
  3. Step 3: Cross multiply
    108,965.61x = 163,694.47 × 64,621.46
  4. Step 4: Simplify right side
    108,965.61x = 10,578,174,907.63
  5. Step 5: Solve for x
    x = 10,578,174,907.63/108,965.61
  6. Step 6: Final answer
    x = 97,078.10

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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.