Home / 122,345.12-168,758.57-88,403.42

Finding the Fourth Proportional to 122,345.12, 168,758.57 and 88,403.42

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Solution

The fourth proportional to 122,345.12, 168,758.57 and 88,403.42 is: 121,940.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,345.12 : 168,758.57 = 88,403.42 : x
  2. Step 2: Convert to fraction form
    122,345.12/168,758.57 = 88,403.42/x
  3. Step 3: Cross multiply
    122,345.12x = 168,758.57 × 88,403.42
  4. Step 4: Simplify right side
    122,345.12x = 14,918,834,742.31
  5. Step 5: Solve for x
    x = 14,918,834,742.31/122,345.12
  6. Step 6: Final answer
    x = 121,940.58

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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.