Home / 216,142.08-298,274.88-120,643.04

Finding the Fourth Proportional to 216,142.08, 298,274.88 and 120,643.04

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Solution

The fourth proportional to 216,142.08, 298,274.88 and 120,643.04 is: 166,486.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,142.08 : 298,274.88 = 120,643.04 : x
  2. Step 2: Convert to fraction form
    216,142.08/298,274.88 = 120,643.04/x
  3. Step 3: Cross multiply
    216,142.08x = 298,274.88 × 120,643.04
  4. Step 4: Simplify right side
    216,142.08x = 35,984,788,278.84
  5. Step 5: Solve for x
    x = 35,984,788,278.84/216,142.08
  6. Step 6: Final answer
    x = 166,486.73

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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.