Home / 156,748.87-235,123.26-38,419.21

Finding the Fourth Proportional to 156,748.87, 235,123.26 and 38,419.21

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Solution

The fourth proportional to 156,748.87, 235,123.26 and 38,419.21 is: 57,628.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,748.87 : 235,123.26 = 38,419.21 : x
  2. Step 2: Convert to fraction form
    156,748.87/235,123.26 = 38,419.21/x
  3. Step 3: Cross multiply
    156,748.87x = 235,123.26 × 38,419.21
  4. Step 4: Simplify right side
    156,748.87x = 9,033,249,901.82
  5. Step 5: Solve for x
    x = 9,033,249,901.82/156,748.87
  6. Step 6: Final answer
    x = 57,628.80

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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.