Home / 140,462.50-193,841.76-85,272.49

Finding the Fourth Proportional to 140,462.50, 193,841.76 and 85,272.49

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Solution

The fourth proportional to 140,462.50, 193,841.76 and 85,272.49 is: 117,678.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,462.50 : 193,841.76 = 85,272.49 : x
  2. Step 2: Convert to fraction form
    140,462.50/193,841.76 = 85,272.49/x
  3. Step 3: Cross multiply
    140,462.50x = 193,841.76 × 85,272.49
  4. Step 4: Simplify right side
    140,462.50x = 16,529,369,541.18
  5. Step 5: Solve for x
    x = 16,529,369,541.18/140,462.50
  6. Step 6: Final answer
    x = 117,678.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.