Home / 103,931.07-155,779.97-51,377.46

Finding the Fourth Proportional to 103,931.07, 155,779.97 and 51,377.46

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Solution

The fourth proportional to 103,931.07, 155,779.97 and 51,377.46 is: 77,008.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,931.07 : 155,779.97 = 51,377.46 : x
  2. Step 2: Convert to fraction form
    103,931.07/155,779.97 = 51,377.46/x
  3. Step 3: Cross multiply
    103,931.07x = 155,779.97 × 51,377.46
  4. Step 4: Simplify right side
    103,931.07x = 8,003,578,920.59
  5. Step 5: Solve for x
    x = 8,003,578,920.59/103,931.07
  6. Step 6: Final answer
    x = 77,008.53

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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.