Home / 316,559.12-474,885.72-91,921.52

Finding the Fourth Proportional to 316,559.12, 474,885.72 and 91,921.52

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Solution

The fourth proportional to 316,559.12, 474,885.72 and 91,921.52 is: 137,895.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,559.12 : 474,885.72 = 91,921.52 : x
  2. Step 2: Convert to fraction form
    316,559.12/474,885.72 = 91,921.52/x
  3. Step 3: Cross multiply
    316,559.12x = 474,885.72 × 91,921.52
  4. Step 4: Simplify right side
    316,559.12x = 43,652,217,208.69
  5. Step 5: Solve for x
    x = 43,652,217,208.69/316,559.12
  6. Step 6: Final answer
    x = 137,895.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.