Home / 103,038.60-142,198.61-57,713.93

Finding the Fourth Proportional to 103,038.60, 142,198.61 and 57,713.93

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Solution

The fourth proportional to 103,038.60, 142,198.61 and 57,713.93 is: 79,648.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,038.60 : 142,198.61 = 57,713.93 : x
  2. Step 2: Convert to fraction form
    103,038.60/142,198.61 = 57,713.93/x
  3. Step 3: Cross multiply
    103,038.60x = 142,198.61 × 57,713.93
  4. Step 4: Simplify right side
    103,038.60x = 8,206,840,623.64
  5. Step 5: Solve for x
    x = 8,206,840,623.64/103,038.60
  6. Step 6: Final answer
    x = 79,648.22

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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.