Home / 211,851.32-292,246.66-135,289.96

Finding the Fourth Proportional to 211,851.32, 292,246.66 and 135,289.96

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Solution

The fourth proportional to 211,851.32, 292,246.66 and 135,289.96 is: 186,631.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,851.32 : 292,246.66 = 135,289.96 : x
  2. Step 2: Convert to fraction form
    211,851.32/292,246.66 = 135,289.96/x
  3. Step 3: Cross multiply
    211,851.32x = 292,246.66 × 135,289.96
  4. Step 4: Simplify right side
    211,851.32x = 39,538,038,941.53
  5. Step 5: Solve for x
    x = 39,538,038,941.53/211,851.32
  6. Step 6: Final answer
    x = 186,631.07

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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.