Home / 109,066.08-163,618.08-42,542.40

Finding the Fourth Proportional to 109,066.08, 163,618.08 and 42,542.40

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Solution

The fourth proportional to 109,066.08, 163,618.08 and 42,542.40 is: 63,821.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,066.08 : 163,618.08 = 42,542.40 : x
  2. Step 2: Convert to fraction form
    109,066.08/163,618.08 = 42,542.40/x
  3. Step 3: Cross multiply
    109,066.08x = 163,618.08 × 42,542.40
  4. Step 4: Simplify right side
    109,066.08x = 6,960,705,806.59
  5. Step 5: Solve for x
    x = 6,960,705,806.59/109,066.08
  6. Step 6: Final answer
    x = 63,821.00

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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.