Home / 122,155.65-184,065.69-100,455.15

Finding the Fourth Proportional to 122,155.65, 184,065.69 and 100,455.15

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Solution

The fourth proportional to 122,155.65, 184,065.69 and 100,455.15 is: 151,367.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,155.65 : 184,065.69 = 100,455.15 : x
  2. Step 2: Convert to fraction form
    122,155.65/184,065.69 = 100,455.15/x
  3. Step 3: Cross multiply
    122,155.65x = 184,065.69 × 100,455.15
  4. Step 4: Simplify right side
    122,155.65x = 18,490,346,498.80
  5. Step 5: Solve for x
    x = 18,490,346,498.80/122,155.65
  6. Step 6: Final answer
    x = 151,367.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.