Home / 218,583.55-301,639.41-123,088.20

Finding the Fourth Proportional to 218,583.55, 301,639.41 and 123,088.20

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Solution

The fourth proportional to 218,583.55, 301,639.41 and 123,088.20 is: 169,858.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,583.55 : 301,639.41 = 123,088.20 : x
  2. Step 2: Convert to fraction form
    218,583.55/301,639.41 = 123,088.20/x
  3. Step 3: Cross multiply
    218,583.55x = 301,639.41 × 123,088.20
  4. Step 4: Simplify right side
    218,583.55x = 37,128,252,025.96
  5. Step 5: Solve for x
    x = 37,128,252,025.96/218,583.55
  6. Step 6: Final answer
    x = 169,858.40

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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.