Home / 212,079.32-292,675.05-115,289.69

Finding the Fourth Proportional to 212,079.32, 292,675.05 and 115,289.69

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Solution

The fourth proportional to 212,079.32, 292,675.05 and 115,289.69 is: 159,102.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,079.32 : 292,675.05 = 115,289.69 : x
  2. Step 2: Convert to fraction form
    212,079.32/292,675.05 = 115,289.69/x
  3. Step 3: Cross multiply
    212,079.32x = 292,675.05 × 115,289.69
  4. Step 4: Simplify right side
    212,079.32x = 33,742,414,321.86
  5. Step 5: Solve for x
    x = 33,742,414,321.86/212,079.32
  6. Step 6: Final answer
    x = 159,102.81

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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.