Home / 212,059.50-292,642.72-121,416.86

Finding the Fourth Proportional to 212,059.50, 292,642.72 and 121,416.86

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Solution

The fourth proportional to 212,059.50, 292,642.72 and 121,416.86 is: 167,555.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,059.50 : 292,642.72 = 121,416.86 : x
  2. Step 2: Convert to fraction form
    212,059.50/292,642.72 = 121,416.86/x
  3. Step 3: Cross multiply
    212,059.50x = 292,642.72 × 121,416.86
  4. Step 4: Simplify right side
    212,059.50x = 35,531,758,397.50
  5. Step 5: Solve for x
    x = 35,531,758,397.50/212,059.50
  6. Step 6: Final answer
    x = 167,555.61

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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.