Home / 156,971.40-235,451.90-68,225.02

Finding the Fourth Proportional to 156,971.40, 235,451.90 and 68,225.02

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Solution

The fourth proportional to 156,971.40, 235,451.90 and 68,225.02 is: 102,335.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,971.40 : 235,451.90 = 68,225.02 : x
  2. Step 2: Convert to fraction form
    156,971.40/235,451.90 = 68,225.02/x
  3. Step 3: Cross multiply
    156,971.40x = 235,451.90 × 68,225.02
  4. Step 4: Simplify right side
    156,971.40x = 16,063,710,586.54
  5. Step 5: Solve for x
    x = 16,063,710,586.54/156,971.40
  6. Step 6: Final answer
    x = 102,335.27

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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.