Home / 108,977.84-163,486.20-42,454.16

Finding the Fourth Proportional to 108,977.84, 163,486.20 and 42,454.16

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Solution

The fourth proportional to 108,977.84, 163,486.20 and 42,454.16 is: 63,688.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,977.84 : 163,486.20 = 42,454.16 : x
  2. Step 2: Convert to fraction form
    108,977.84/163,486.20 = 42,454.16/x
  3. Step 3: Cross multiply
    108,977.84x = 163,486.20 × 42,454.16
  4. Step 4: Simplify right side
    108,977.84x = 6,940,669,292.59
  5. Step 5: Solve for x
    x = 6,940,669,292.59/108,977.84
  6. Step 6: Final answer
    x = 63,688.81

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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.