Home / 156,430.76-234,689.88-51,323.54

Finding the Fourth Proportional to 156,430.76, 234,689.88 and 51,323.54

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Solution

The fourth proportional to 156,430.76, 234,689.88 and 51,323.54 is: 76,999.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,430.76 : 234,689.88 = 51,323.54 : x
  2. Step 2: Convert to fraction form
    156,430.76/234,689.88 = 51,323.54/x
  3. Step 3: Cross multiply
    156,430.76x = 234,689.88 × 51,323.54
  4. Step 4: Simplify right side
    156,430.76x = 12,045,115,443.78
  5. Step 5: Solve for x
    x = 12,045,115,443.78/156,430.76
  6. Step 6: Final answer
    x = 76,999.66

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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.