Home / 316,154.31-474,256.22-91,518.12

Finding the Fourth Proportional to 316,154.31, 474,256.22 and 91,518.12

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Solution

The fourth proportional to 316,154.31, 474,256.22 and 91,518.12 is: 137,284.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,154.31 : 474,256.22 = 91,518.12 : x
  2. Step 2: Convert to fraction form
    316,154.31/474,256.22 = 91,518.12/x
  3. Step 3: Cross multiply
    316,154.31x = 474,256.22 × 91,518.12
  4. Step 4: Simplify right side
    316,154.31x = 43,403,037,195.12
  5. Step 5: Solve for x
    x = 43,403,037,195.12/316,154.31
  6. Step 6: Final answer
    x = 137,284.35

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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.