Home / 112,989.22-155,998.16-70,014.30

Finding the Fourth Proportional to 112,989.22, 155,998.16 and 70,014.30

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Solution

The fourth proportional to 112,989.22, 155,998.16 and 70,014.30 is: 96,664.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,989.22 : 155,998.16 = 70,014.30 : x
  2. Step 2: Convert to fraction form
    112,989.22/155,998.16 = 70,014.30/x
  3. Step 3: Cross multiply
    112,989.22x = 155,998.16 × 70,014.30
  4. Step 4: Simplify right side
    112,989.22x = 10,922,101,973.69
  5. Step 5: Solve for x
    x = 10,922,101,973.69/112,989.22
  6. Step 6: Final answer
    x = 96,664.99

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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.