Home / 141,936.12-212,663.16-85,657.98

Finding the Fourth Proportional to 141,936.12, 212,663.16 and 85,657.98

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Solution

The fourth proportional to 141,936.12, 212,663.16 and 85,657.98 is: 128,341.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,936.12 : 212,663.16 = 85,657.98 : x
  2. Step 2: Convert to fraction form
    141,936.12/212,663.16 = 85,657.98/x
  3. Step 3: Cross multiply
    141,936.12x = 212,663.16 × 85,657.98
  4. Step 4: Simplify right side
    141,936.12x = 18,216,296,706.02
  5. Step 5: Solve for x
    x = 18,216,296,706.02/141,936.12
  6. Step 6: Final answer
    x = 128,341.52

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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.