Home / 122,237.85-168,688.83-71,285.91

Finding the Fourth Proportional to 122,237.85, 168,688.83 and 71,285.91

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Solution

The fourth proportional to 122,237.85, 168,688.83 and 71,285.91 is: 98,374.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,237.85 : 168,688.83 = 71,285.91 : x
  2. Step 2: Convert to fraction form
    122,237.85/168,688.83 = 71,285.91/x
  3. Step 3: Cross multiply
    122,237.85x = 168,688.83 × 71,285.91
  4. Step 4: Simplify right side
    122,237.85x = 12,025,136,753.39
  5. Step 5: Solve for x
    x = 12,025,136,753.39/122,237.85
  6. Step 6: Final answer
    x = 98,374.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.