Home / 157,619.56-217,483.30-100,281.64

Finding the Fourth Proportional to 157,619.56, 217,483.30 and 100,281.64

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Solution

The fourth proportional to 157,619.56, 217,483.30 and 100,281.64 is: 138,368.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,619.56 : 217,483.30 = 100,281.64 : x
  2. Step 2: Convert to fraction form
    157,619.56/217,483.30 = 100,281.64/x
  3. Step 3: Cross multiply
    157,619.56x = 217,483.30 × 100,281.64
  4. Step 4: Simplify right side
    157,619.56x = 21,809,581,996.61
  5. Step 5: Solve for x
    x = 21,809,581,996.61/157,619.56
  6. Step 6: Final answer
    x = 138,368.50

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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.