Home / 122,703.10-183,946.65-83,131.90

Finding the Fourth Proportional to 122,703.10, 183,946.65 and 83,131.90

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Solution

The fourth proportional to 122,703.10, 183,946.65 and 83,131.90 is: 124,624.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,703.10 : 183,946.65 = 83,131.90 : x
  2. Step 2: Convert to fraction form
    122,703.10/183,946.65 = 83,131.90/x
  3. Step 3: Cross multiply
    122,703.10x = 183,946.65 × 83,131.90
  4. Step 4: Simplify right side
    122,703.10x = 15,291,834,513.14
  5. Step 5: Solve for x
    x = 15,291,834,513.14/122,703.10
  6. Step 6: Final answer
    x = 124,624.68

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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.