Home / 212,150.76-292,743.51-121,501.32

Finding the Fourth Proportional to 212,150.76, 292,743.51 and 121,501.32

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Solution

The fourth proportional to 212,150.76, 292,743.51 and 121,501.32 is: 167,657.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,150.76 : 292,743.51 = 121,501.32 : x
  2. Step 2: Convert to fraction form
    212,150.76/292,743.51 = 121,501.32/x
  3. Step 3: Cross multiply
    212,150.76x = 292,743.51 × 121,501.32
  4. Step 4: Simplify right side
    212,150.76x = 35,568,722,886.43
  5. Step 5: Solve for x
    x = 35,568,722,886.43/212,150.76
  6. Step 6: Final answer
    x = 167,657.77

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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.