Home / 142,427.06-213,640.32-53,700.47

Finding the Fourth Proportional to 142,427.06, 213,640.32 and 53,700.47

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Solution

The fourth proportional to 142,427.06, 213,640.32 and 53,700.47 is: 80,550.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,427.06 : 213,640.32 = 53,700.47 : x
  2. Step 2: Convert to fraction form
    142,427.06/213,640.32 = 53,700.47/x
  3. Step 3: Cross multiply
    142,427.06x = 213,640.32 × 53,700.47
  4. Step 4: Simplify right side
    142,427.06x = 11,472,585,594.95
  5. Step 5: Solve for x
    x = 11,472,585,594.95/142,427.06
  6. Step 6: Final answer
    x = 80,550.60

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1.5x scale

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.