Home / 103,367.86-142,663.26-63,105.10

Finding the Fourth Proportional to 103,367.86, 142,663.26 and 63,105.10

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Solution

The fourth proportional to 103,367.86, 142,663.26 and 63,105.10 is: 87,094.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,367.86 : 142,663.26 = 63,105.10 : x
  2. Step 2: Convert to fraction form
    103,367.86/142,663.26 = 63,105.10/x
  3. Step 3: Cross multiply
    103,367.86x = 142,663.26 × 63,105.10
  4. Step 4: Simplify right side
    103,367.86x = 9,002,779,288.63
  5. Step 5: Solve for x
    x = 9,002,779,288.63/103,367.86
  6. Step 6: Final answer
    x = 87,094.57

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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.