Home / 109,746.50-151,456.65-61,998.62

Finding the Fourth Proportional to 109,746.50, 151,456.65 and 61,998.62

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Solution

The fourth proportional to 109,746.50, 151,456.65 and 61,998.62 is: 85,561.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,746.50 : 151,456.65 = 61,998.62 : x
  2. Step 2: Convert to fraction form
    109,746.50/151,456.65 = 61,998.62/x
  3. Step 3: Cross multiply
    109,746.50x = 151,456.65 × 61,998.62
  4. Step 4: Simplify right side
    109,746.50x = 9,390,103,289.82
  5. Step 5: Solve for x
    x = 9,390,103,289.82/109,746.50
  6. Step 6: Final answer
    x = 85,561.76

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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.