Home / 107,365.22-148,303.44-81,715.76

Finding the Fourth Proportional to 107,365.22, 148,303.44 and 81,715.76

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Solution

The fourth proportional to 107,365.22, 148,303.44 and 81,715.76 is: 112,873.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,365.22 : 148,303.44 = 81,715.76 : x
  2. Step 2: Convert to fraction form
    107,365.22/148,303.44 = 81,715.76/x
  3. Step 3: Cross multiply
    107,365.22x = 148,303.44 × 81,715.76
  4. Step 4: Simplify right side
    107,365.22x = 12,118,728,310.21
  5. Step 5: Solve for x
    x = 12,118,728,310.21/107,365.22
  6. Step 6: Final answer
    x = 112,873.87

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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.