Home / 99,062.14-136,545.93-81,125.50

Finding the Fourth Proportional to 99,062.14, 136,545.93 and 81,125.50

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Solution

The fourth proportional to 99,062.14, 136,545.93 and 81,125.50 is: 111,822.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,062.14 : 136,545.93 = 81,125.50 : x
  2. Step 2: Convert to fraction form
    99,062.14/136,545.93 = 81,125.50/x
  3. Step 3: Cross multiply
    99,062.14x = 136,545.93 × 81,125.50
  4. Step 4: Simplify right side
    99,062.14x = 11,077,356,844.22
  5. Step 5: Solve for x
    x = 11,077,356,844.22/99,062.14
  6. Step 6: Final answer
    x = 111,822.31

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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.