Home / 107,780.40-161,600.19-51,618.69

Finding the Fourth Proportional to 107,780.40, 161,600.19 and 51,618.69

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Solution

The fourth proportional to 107,780.40, 161,600.19 and 51,618.69 is: 77,394.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,780.40 : 161,600.19 = 51,618.69 : x
  2. Step 2: Convert to fraction form
    107,780.40/161,600.19 = 51,618.69/x
  3. Step 3: Cross multiply
    107,780.40x = 161,600.19 × 51,618.69
  4. Step 4: Simplify right side
    107,780.40x = 8,341,590,111.55
  5. Step 5: Solve for x
    x = 8,341,590,111.55/107,780.40
  6. Step 6: Final answer
    x = 77,394.31

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1.5x scale

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.