Home / 109,241.16-163,864.98-42,678.60

Finding the Fourth Proportional to 109,241.16, 163,864.98 and 42,678.60

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Solution

The fourth proportional to 109,241.16, 163,864.98 and 42,678.60 is: 64,019.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,241.16 : 163,864.98 = 42,678.60 : x
  2. Step 2: Convert to fraction form
    109,241.16/163,864.98 = 42,678.60/x
  3. Step 3: Cross multiply
    109,241.16x = 163,864.98 × 42,678.60
  4. Step 4: Simplify right side
    109,241.16x = 6,993,527,935.43
  5. Step 5: Solve for x
    x = 6,993,527,935.43/109,241.16
  6. Step 6: Final answer
    x = 64,019.17

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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.