Home / 103,177.41-142,390.76-57,869.93

Finding the Fourth Proportional to 103,177.41, 142,390.76 and 57,869.93

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Solution

The fourth proportional to 103,177.41, 142,390.76 and 57,869.93 is: 79,863.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,177.41 : 142,390.76 = 57,869.93 : x
  2. Step 2: Convert to fraction form
    103,177.41/142,390.76 = 57,869.93/x
  3. Step 3: Cross multiply
    103,177.41x = 142,390.76 × 57,869.93
  4. Step 4: Simplify right side
    103,177.41x = 8,240,142,312.54
  5. Step 5: Solve for x
    x = 8,240,142,312.54/103,177.41
  6. Step 6: Final answer
    x = 79,863.82

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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.