Home / 113,529.26-156,646.41-65,779.70

Finding the Fourth Proportional to 113,529.26, 156,646.41 and 65,779.70

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Solution

The fourth proportional to 113,529.26, 156,646.41 and 65,779.70 is: 90,762.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,529.26 : 156,646.41 = 65,779.70 : x
  2. Step 2: Convert to fraction form
    113,529.26/156,646.41 = 65,779.70/x
  3. Step 3: Cross multiply
    113,529.26x = 156,646.41 × 65,779.70
  4. Step 4: Simplify right side
    113,529.26x = 10,304,153,855.88
  5. Step 5: Solve for x
    x = 10,304,153,855.88/113,529.26
  6. Step 6: Final answer
    x = 90,762.10

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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.