Home / 152,699.36-228,861.12-72,779.36

Finding the Fourth Proportional to 152,699.36, 228,861.12 and 72,779.36

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Solution

The fourth proportional to 152,699.36, 228,861.12 and 72,779.36 is: 109,079.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,699.36 : 228,861.12 = 72,779.36 : x
  2. Step 2: Convert to fraction form
    152,699.36/228,861.12 = 72,779.36/x
  3. Step 3: Cross multiply
    152,699.36x = 228,861.12 × 72,779.36
  4. Step 4: Simplify right side
    152,699.36x = 16,656,365,842.48
  5. Step 5: Solve for x
    x = 16,656,365,842.48/152,699.36
  6. Step 6: Final answer
    x = 109,079.47

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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.