Home / 122,666.10-183,999.15-121,499.70

Finding the Fourth Proportional to 122,666.10, 183,999.15 and 121,499.70

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Solution

The fourth proportional to 122,666.10, 183,999.15 and 121,499.70 is: 182,249.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,666.10 : 183,999.15 = 121,499.70 : x
  2. Step 2: Convert to fraction form
    122,666.10/183,999.15 = 121,499.70/x
  3. Step 3: Cross multiply
    122,666.10x = 183,999.15 × 121,499.70
  4. Step 4: Simplify right side
    122,666.10x = 22,355,841,525.26
  5. Step 5: Solve for x
    x = 22,355,841,525.26/122,666.10
  6. Step 6: Final answer
    x = 182,249.55

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1.5x scale

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.