Home / 212,711.55-293,543.90-117,221.64

Finding the Fourth Proportional to 212,711.55, 293,543.90 and 117,221.64

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Solution

The fourth proportional to 212,711.55, 293,543.90 and 117,221.64 is: 161,766.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,711.55 : 293,543.90 = 117,221.64 : x
  2. Step 2: Convert to fraction form
    212,711.55/293,543.90 = 117,221.64/x
  3. Step 3: Cross multiply
    212,711.55x = 293,543.90 × 117,221.64
  4. Step 4: Simplify right side
    212,711.55x = 34,409,696,783.89
  5. Step 5: Solve for x
    x = 34,409,696,783.89/212,711.55
  6. Step 6: Final answer
    x = 161,766.94

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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.