Home / 109,135.20-163,616.40-59,887.20

Finding the Fourth Proportional to 109,135.20, 163,616.40 and 59,887.20

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Solution

The fourth proportional to 109,135.20, 163,616.40 and 59,887.20 is: 89,783.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,135.20 : 163,616.40 = 59,887.20 : x
  2. Step 2: Convert to fraction form
    109,135.20/163,616.40 = 59,887.20/x
  3. Step 3: Cross multiply
    109,135.20x = 163,616.40 × 59,887.20
  4. Step 4: Simplify right side
    109,135.20x = 9,798,528,070.08
  5. Step 5: Solve for x
    x = 9,798,528,070.08/109,135.20
  6. Step 6: Final answer
    x = 89,783.39

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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.