Home / 103,348.08-142,622.10-57,406.50

Finding the Fourth Proportional to 103,348.08, 142,622.10 and 57,406.50

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Solution

The fourth proportional to 103,348.08, 142,622.10 and 57,406.50 is: 79,221.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,348.08 : 142,622.10 = 57,406.50 : x
  2. Step 2: Convert to fraction form
    103,348.08/142,622.10 = 57,406.50/x
  3. Step 3: Cross multiply
    103,348.08x = 142,622.10 × 57,406.50
  4. Step 4: Simplify right side
    103,348.08x = 8,187,435,583.65
  5. Step 5: Solve for x
    x = 8,187,435,583.65/103,348.08
  6. Step 6: Final answer
    x = 79,221.94

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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.