Home / 156,971.24-235,141.23-72,612.98

Finding the Fourth Proportional to 156,971.24, 235,141.23 and 72,612.98

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Solution

The fourth proportional to 156,971.24, 235,141.23 and 72,612.98 is: 108,773.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,971.24 : 235,141.23 = 72,612.98 : x
  2. Step 2: Convert to fraction form
    156,971.24/235,141.23 = 72,612.98/x
  3. Step 3: Cross multiply
    156,971.24x = 235,141.23 × 72,612.98
  4. Step 4: Simplify right side
    156,971.24x = 17,074,305,431.17
  5. Step 5: Solve for x
    x = 17,074,305,431.17/156,971.24
  6. Step 6: Final answer
    x = 108,773.46

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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.