Home / 156,974.40-235,461.60-51,779.70

Finding the Fourth Proportional to 156,974.40, 235,461.60 and 51,779.70

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Solution

The fourth proportional to 156,974.40, 235,461.60 and 51,779.70 is: 77,669.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,974.40 : 235,461.60 = 51,779.70 : x
  2. Step 2: Convert to fraction form
    156,974.40/235,461.60 = 51,779.70/x
  3. Step 3: Cross multiply
    156,974.40x = 235,461.60 × 51,779.70
  4. Step 4: Simplify right side
    156,974.40x = 12,192,131,009.52
  5. Step 5: Solve for x
    x = 12,192,131,009.52/156,974.40
  6. Step 6: Final answer
    x = 77,669.55

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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.