Home / 156,822.85-235,352.58-72,642.08

Finding the Fourth Proportional to 156,822.85, 235,352.58 and 72,642.08

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Solution

The fourth proportional to 156,822.85, 235,352.58 and 72,642.08 is: 109,017.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,822.85 : 235,352.58 = 72,642.08 : x
  2. Step 2: Convert to fraction form
    156,822.85/235,352.58 = 72,642.08/x
  3. Step 3: Cross multiply
    156,822.85x = 235,352.58 × 72,642.08
  4. Step 4: Simplify right side
    156,822.85x = 17,096,500,944.57
  5. Step 5: Solve for x
    x = 17,096,500,944.57/156,822.85
  6. Step 6: Final answer
    x = 109,017.92

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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.