Home / 91,266.12-125,032.32-87,854.64

Finding the Fourth Proportional to 91,266.12, 125,032.32 and 87,854.64

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Solution

The fourth proportional to 91,266.12, 125,032.32 and 87,854.64 is: 120,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,266.12 : 125,032.32 = 87,854.64 : x
  2. Step 2: Convert to fraction form
    91,266.12/125,032.32 = 87,854.64/x
  3. Step 3: Cross multiply
    91,266.12x = 125,032.32 × 87,854.64
  4. Step 4: Simplify right side
    91,266.12x = 10,984,669,461.96
  5. Step 5: Solve for x
    x = 10,984,669,461.96/91,266.12
  6. Step 6: Final answer
    x = 120,358.68

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.