Home / 112,146.12-154,756.44-64,365.84

Finding the Fourth Proportional to 112,146.12, 154,756.44 and 64,365.84

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Solution

The fourth proportional to 112,146.12, 154,756.44 and 64,365.84 is: 88,821.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,146.12 : 154,756.44 = 64,365.84 : x
  2. Step 2: Convert to fraction form
    112,146.12/154,756.44 = 64,365.84/x
  3. Step 3: Cross multiply
    112,146.12x = 154,756.44 × 64,365.84
  4. Step 4: Simplify right side
    112,146.12x = 9,961,028,256.01
  5. Step 5: Solve for x
    x = 9,961,028,256.01/112,146.12
  6. Step 6: Final answer
    x = 88,821.87

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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.