Home / 122,913.66-169,666.74-71,942.52

Finding the Fourth Proportional to 122,913.66, 169,666.74 and 71,942.52

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Solution

The fourth proportional to 122,913.66, 169,666.74 and 71,942.52 is: 99,307.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,913.66 : 169,666.74 = 71,942.52 : x
  2. Step 2: Convert to fraction form
    122,913.66/169,666.74 = 71,942.52/x
  3. Step 3: Cross multiply
    122,913.66x = 169,666.74 × 71,942.52
  4. Step 4: Simplify right side
    122,913.66x = 12,206,252,835.78
  5. Step 5: Solve for x
    x = 12,206,252,835.78/122,913.66
  6. Step 6: Final answer
    x = 99,307.54

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1.5x scale

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.