Home / 152,779.69-229,175.75-72,776.53

Finding the Fourth Proportional to 152,779.69, 229,175.75 and 72,776.53

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Solution

The fourth proportional to 152,779.69, 229,175.75 and 72,776.53 is: 109,167.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,779.69 : 229,175.75 = 72,776.53 : x
  2. Step 2: Convert to fraction form
    152,779.69/229,175.75 = 72,776.53/x
  3. Step 3: Cross multiply
    152,779.69x = 229,175.75 × 72,776.53
  4. Step 4: Simplify right side
    152,779.69x = 16,678,615,845.15
  5. Step 5: Solve for x
    x = 16,678,615,845.15/152,779.69
  6. Step 6: Final answer
    x = 109,167.76

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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.