Home / 141,754.31-212,557.64-66,854.35

Finding the Fourth Proportional to 141,754.31, 212,557.64 and 66,854.35

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Solution

The fourth proportional to 141,754.31, 212,557.64 and 66,854.35 is: 100,246.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,754.31 : 212,557.64 = 66,854.35 : x
  2. Step 2: Convert to fraction form
    141,754.31/212,557.64 = 66,854.35/x
  3. Step 3: Cross multiply
    141,754.31x = 212,557.64 × 66,854.35
  4. Step 4: Simplify right side
    141,754.31x = 14,210,401,462.67
  5. Step 5: Solve for x
    x = 14,210,401,462.67/141,754.31
  6. Step 6: Final answer
    x = 100,246.70

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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.