Home / 155,811.42-233,498.43-66,998.16

Finding the Fourth Proportional to 155,811.42, 233,498.43 and 66,998.16

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Solution

The fourth proportional to 155,811.42, 233,498.43 and 66,998.16 is: 100,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,811.42 : 233,498.43 = 66,998.16 : x
  2. Step 2: Convert to fraction form
    155,811.42/233,498.43 = 66,998.16/x
  3. Step 3: Cross multiply
    155,811.42x = 233,498.43 × 66,998.16
  4. Step 4: Simplify right side
    155,811.42x = 15,643,965,172.89
  5. Step 5: Solve for x
    x = 15,643,965,172.89/155,811.42
  6. Step 6: Final answer
    x = 100,403.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.