Home / 156,730.34-235,135.31-72,551.23

Finding the Fourth Proportional to 156,730.34, 235,135.31 and 72,551.23

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Solution

The fourth proportional to 156,730.34, 235,135.31 and 72,551.23 is: 108,845.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,730.34 : 235,135.31 = 72,551.23 : x
  2. Step 2: Convert to fraction form
    156,730.34/235,135.31 = 72,551.23/x
  3. Step 3: Cross multiply
    156,730.34x = 235,135.31 × 72,551.23
  4. Step 4: Simplify right side
    156,730.34x = 17,059,355,006.34
  5. Step 5: Solve for x
    x = 17,059,355,006.34/156,730.34
  6. Step 6: Final answer
    x = 108,845.26

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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.