Home / 122,111.40-183,167.10-121,333.80

Finding the Fourth Proportional to 122,111.40, 183,167.10 and 121,333.80

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Solution

The fourth proportional to 122,111.40, 183,167.10 and 121,333.80 is: 182,000.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,111.40 : 183,167.10 = 121,333.80 : x
  2. Step 2: Convert to fraction form
    122,111.40/183,167.10 = 121,333.80/x
  3. Step 3: Cross multiply
    122,111.40x = 183,167.10 × 121,333.80
  4. Step 4: Simplify right side
    122,111.40x = 22,224,360,277.98
  5. Step 5: Solve for x
    x = 22,224,360,277.98/122,111.40
  6. Step 6: Final answer
    x = 182,000.70

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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.