Home / 141,931.11-212,655.66-85,652.97

Finding the Fourth Proportional to 141,931.11, 212,655.66 and 85,652.97

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Solution

The fourth proportional to 141,931.11, 212,655.66 and 85,652.97 is: 128,334.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,931.11 : 212,655.66 = 85,652.97 : x
  2. Step 2: Convert to fraction form
    141,931.11/212,655.66 = 85,652.97/x
  3. Step 3: Cross multiply
    141,931.11x = 212,655.66 × 85,652.97
  4. Step 4: Simplify right side
    141,931.11x = 18,214,588,866.31
  5. Step 5: Solve for x
    x = 18,214,588,866.31/141,931.11
  6. Step 6: Final answer
    x = 128,334.01

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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.