Home / 98,686.22-136,188.41-55,667.72

Finding the Fourth Proportional to 98,686.22, 136,188.41 and 55,667.72

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Solution

The fourth proportional to 98,686.22, 136,188.41 and 55,667.72 is: 76,822.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,686.22 : 136,188.41 = 55,667.72 : x
  2. Step 2: Convert to fraction form
    98,686.22/136,188.41 = 55,667.72/x
  3. Step 3: Cross multiply
    98,686.22x = 136,188.41 × 55,667.72
  4. Step 4: Simplify right side
    98,686.22x = 7,581,298,337.26
  5. Step 5: Solve for x
    x = 7,581,298,337.26/98,686.22
  6. Step 6: Final answer
    x = 76,822.26

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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.