Home / 136,288.67-204,345.53-89,486.87

Finding the Fourth Proportional to 136,288.67, 204,345.53 and 89,486.87

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Solution

The fourth proportional to 136,288.67, 204,345.53 and 89,486.87 is: 134,172.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,288.67 : 204,345.53 = 89,486.87 : x
  2. Step 2: Convert to fraction form
    136,288.67/204,345.53 = 89,486.87/x
  3. Step 3: Cross multiply
    136,288.67x = 204,345.53 × 89,486.87
  4. Step 4: Simplify right side
    136,288.67x = 18,286,241,430.76
  5. Step 5: Solve for x
    x = 18,286,241,430.76/136,288.67
  6. Step 6: Final answer
    x = 134,172.87

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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.