Home / 145,480.34-200,732.76-85,039.29

Finding the Fourth Proportional to 145,480.34, 200,732.76 and 85,039.29

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Solution

The fourth proportional to 145,480.34, 200,732.76 and 85,039.29 is: 117,336.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,480.34 : 200,732.76 = 85,039.29 : x
  2. Step 2: Convert to fraction form
    145,480.34/200,732.76 = 85,039.29/x
  3. Step 3: Cross multiply
    145,480.34x = 200,732.76 × 85,039.29
  4. Step 4: Simplify right side
    145,480.34x = 17,070,170,637.39
  5. Step 5: Solve for x
    x = 17,070,170,637.39/145,480.34
  6. Step 6: Final answer
    x = 117,336.62

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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.