Home / 112,195.15-154,843.70-64,457.72

Finding the Fourth Proportional to 112,195.15, 154,843.70 and 64,457.72

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Solution

The fourth proportional to 112,195.15, 154,843.70 and 64,457.72 is: 88,959.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,195.15 : 154,843.70 = 64,457.72 : x
  2. Step 2: Convert to fraction form
    112,195.15/154,843.70 = 64,457.72/x
  3. Step 3: Cross multiply
    112,195.15x = 154,843.70 × 64,457.72
  4. Step 4: Simplify right side
    112,195.15x = 9,980,872,576.09
  5. Step 5: Solve for x
    x = 9,980,872,576.09/112,195.15
  6. Step 6: Final answer
    x = 88,959.93

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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.