Home / 99,652.81-137,436.27-84,206.11

Finding the Fourth Proportional to 99,652.81, 137,436.27 and 84,206.11

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Solution

The fourth proportional to 99,652.81, 137,436.27 and 84,206.11 is: 116,132.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,652.81 : 137,436.27 = 84,206.11 : x
  2. Step 2: Convert to fraction form
    99,652.81/137,436.27 = 84,206.11/x
  3. Step 3: Cross multiply
    99,652.81x = 137,436.27 × 84,206.11
  4. Step 4: Simplify right side
    99,652.81x = 11,572,973,118.23
  5. Step 5: Solve for x
    x = 11,572,973,118.23/99,652.81
  6. Step 6: Final answer
    x = 116,132.94

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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.