Home / 99,101.08-136,755.12-56,662.39

Finding the Fourth Proportional to 99,101.08, 136,755.12 and 56,662.39

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Solution

The fourth proportional to 99,101.08, 136,755.12 and 56,662.39 is: 78,191.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,101.08 : 136,755.12 = 56,662.39 : x
  2. Step 2: Convert to fraction form
    99,101.08/136,755.12 = 56,662.39/x
  3. Step 3: Cross multiply
    99,101.08x = 136,755.12 × 56,662.39
  4. Step 4: Simplify right side
    99,101.08x = 7,748,871,943.94
  5. Step 5: Solve for x
    x = 7,748,871,943.94/99,101.08
  6. Step 6: Final answer
    x = 78,191.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.