Home / 141,030.62-211,733.65-81,908.72

Finding the Fourth Proportional to 141,030.62, 211,733.65 and 81,908.72

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Solution

The fourth proportional to 141,030.62, 211,733.65 and 81,908.72 is: 122,972.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,030.62 : 211,733.65 = 81,908.72 : x
  2. Step 2: Convert to fraction form
    141,030.62/211,733.65 = 81,908.72/x
  3. Step 3: Cross multiply
    141,030.62x = 211,733.65 × 81,908.72
  4. Step 4: Simplify right side
    141,030.62x = 17,342,831,629.41
  5. Step 5: Solve for x
    x = 17,342,831,629.41/141,030.62
  6. Step 6: Final answer
    x = 122,972.10

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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.