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Finding the Fourth Proportional to 88,498.91, 122,009.07 and 85,747.07

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Solution

The fourth proportional to 88,498.91, 122,009.07 and 85,747.07 is: 118,215.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,498.91 : 122,009.07 = 85,747.07 : x
  2. Step 2: Convert to fraction form
    88,498.91/122,009.07 = 85,747.07/x
  3. Step 3: Cross multiply
    88,498.91x = 122,009.07 × 85,747.07
  4. Step 4: Simplify right side
    88,498.91x = 10,461,919,655.88
  5. Step 5: Solve for x
    x = 10,461,919,655.88/88,498.91
  6. Step 6: Final answer
    x = 118,215.24

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1.5x scale

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.