Home / 213,129.12-294,117.56-117,635.16

Finding the Fourth Proportional to 213,129.12, 294,117.56 and 117,635.16

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Solution

The fourth proportional to 213,129.12, 294,117.56 and 117,635.16 is: 162,336.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,129.12 : 294,117.56 = 117,635.16 : x
  2. Step 2: Convert to fraction form
    213,129.12/294,117.56 = 117,635.16/x
  3. Step 3: Cross multiply
    213,129.12x = 294,117.56 × 117,635.16
  4. Step 4: Simplify right side
    213,129.12x = 34,598,566,229.41
  5. Step 5: Solve for x
    x = 34,598,566,229.41/213,129.12
  6. Step 6: Final answer
    x = 162,336.18

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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.