Home / 218,183.74-301,095.42-122,689.60

Finding the Fourth Proportional to 218,183.74, 301,095.42 and 122,689.60

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Solution

The fourth proportional to 218,183.74, 301,095.42 and 122,689.60 is: 169,312.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,183.74 : 301,095.42 = 122,689.60 : x
  2. Step 2: Convert to fraction form
    218,183.74/301,095.42 = 122,689.60/x
  3. Step 3: Cross multiply
    218,183.74x = 301,095.42 × 122,689.60
  4. Step 4: Simplify right side
    218,183.74x = 36,941,276,641.63
  5. Step 5: Solve for x
    x = 36,941,276,641.63/218,183.74
  6. Step 6: Final answer
    x = 169,312.69

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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.