Home / 316,541.20-474,858.72-91,903.48

Finding the Fourth Proportional to 316,541.20, 474,858.72 and 91,903.48

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Solution

The fourth proportional to 316,541.20, 474,858.72 and 91,903.48 is: 137,868.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,541.20 : 474,858.72 = 91,903.48 : x
  2. Step 2: Convert to fraction form
    316,541.20/474,858.72 = 91,903.48/x
  3. Step 3: Cross multiply
    316,541.20x = 474,858.72 × 91,903.48
  4. Step 4: Simplify right side
    316,541.20x = 43,641,168,876.35
  5. Step 5: Solve for x
    x = 43,641,168,876.35/316,541.20
  6. Step 6: Final answer
    x = 137,868.84

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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.