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Finding the Fourth Proportional to 145,483.82, 200,737.56 and 85,042.77

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Solution

The fourth proportional to 145,483.82, 200,737.56 and 85,042.77 is: 117,341.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,483.82 : 200,737.56 = 85,042.77 : x
  2. Step 2: Convert to fraction form
    145,483.82/200,737.56 = 85,042.77/x
  3. Step 3: Cross multiply
    145,483.82x = 200,737.56 × 85,042.77
  4. Step 4: Simplify right side
    145,483.82x = 17,071,278,145.44
  5. Step 5: Solve for x
    x = 17,071,278,145.44/145,483.82
  6. Step 6: Final answer
    x = 117,341.42

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1.5x scale

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.