Home / 112,989.72-155,998.85-70,014.81

Finding the Fourth Proportional to 112,989.72, 155,998.85 and 70,014.81

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Solution

The fourth proportional to 112,989.72, 155,998.85 and 70,014.81 is: 96,665.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,989.72 : 155,998.85 = 70,014.81 : x
  2. Step 2: Convert to fraction form
    112,989.72/155,998.85 = 70,014.81/x
  3. Step 3: Cross multiply
    112,989.72x = 155,998.85 × 70,014.81
  4. Step 4: Simplify right side
    112,989.72x = 10,922,229,842.97
  5. Step 5: Solve for x
    x = 10,922,229,842.97/112,989.72
  6. Step 6: Final answer
    x = 96,665.70

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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.