Home / 112,020.66-154,576.80-63,607.20

Finding the Fourth Proportional to 112,020.66, 154,576.80 and 63,607.20

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Solution

The fourth proportional to 112,020.66, 154,576.80 and 63,607.20 is: 87,771.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,020.66 : 154,576.80 = 63,607.20 : x
  2. Step 2: Convert to fraction form
    112,020.66/154,576.80 = 63,607.20/x
  3. Step 3: Cross multiply
    112,020.66x = 154,576.80 × 63,607.20
  4. Step 4: Simplify right side
    112,020.66x = 9,832,197,432.96
  5. Step 5: Solve for x
    x = 9,832,197,432.96/112,020.66
  6. Step 6: Final answer
    x = 87,771.29

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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.