Home / 156,960.90-235,436.15-68,214.51

Finding the Fourth Proportional to 156,960.90, 235,436.15 and 68,214.51

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Solution

The fourth proportional to 156,960.90, 235,436.15 and 68,214.51 is: 102,319.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,960.90 : 235,436.15 = 68,214.51 : x
  2. Step 2: Convert to fraction form
    156,960.90/235,436.15 = 68,214.51/x
  3. Step 3: Cross multiply
    156,960.90x = 235,436.15 × 68,214.51
  4. Step 4: Simplify right side
    156,960.90x = 16,060,161,267.46
  5. Step 5: Solve for x
    x = 16,060,161,267.46/156,960.90
  6. Step 6: Final answer
    x = 102,319.50

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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.