Home / 156,779.80-235,169.70-51,609.40

Finding the Fourth Proportional to 156,779.80, 235,169.70 and 51,609.40

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Solution

The fourth proportional to 156,779.80, 235,169.70 and 51,609.40 is: 77,414.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,779.80 : 235,169.70 = 51,609.40 : x
  2. Step 2: Convert to fraction form
    156,779.80/235,169.70 = 51,609.40/x
  3. Step 3: Cross multiply
    156,779.80x = 235,169.70 × 51,609.40
  4. Step 4: Simplify right side
    156,779.80x = 12,136,967,115.18
  5. Step 5: Solve for x
    x = 12,136,967,115.18/156,779.80
  6. Step 6: Final answer
    x = 77,414.10

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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.