Home / 90,835.20-136,277.10-64,591.20

Finding the Fourth Proportional to 90,835.20, 136,277.10 and 64,591.20

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Solution

The fourth proportional to 90,835.20, 136,277.10 and 64,591.20 is: 96,904.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,835.20 : 136,277.10 = 64,591.20 : x
  2. Step 2: Convert to fraction form
    90,835.20/136,277.10 = 64,591.20/x
  3. Step 3: Cross multiply
    90,835.20x = 136,277.10 × 64,591.20
  4. Step 4: Simplify right side
    90,835.20x = 8,802,301,421.52
  5. Step 5: Solve for x
    x = 8,802,301,421.52/90,835.20
  6. Step 6: Final answer
    x = 96,904.08

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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.