Home / 140,741.28-211,032-124,139.52

Finding the Fourth Proportional to 140,741.28, 211,032 and 124,139.52

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Solution

The fourth proportional to 140,741.28, 211,032 and 124,139.52 is: 186,138.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,741.28 : 211,032 = 124,139.52 : x
  2. Step 2: Convert to fraction form
    140,741.28/211,032 = 124,139.52/x
  3. Step 3: Cross multiply
    140,741.28x = 211,032 × 124,139.52
  4. Step 4: Simplify right side
    140,741.28x = 26,197,411,184.64
  5. Step 5: Solve for x
    x = 26,197,411,184.64/140,741.28
  6. Step 6: Final answer
    x = 186,138.79

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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.