Home / 145,583.76-200,904.15-85,142.95

Finding the Fourth Proportional to 145,583.76, 200,904.15 and 85,142.95

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Solution

The fourth proportional to 145,583.76, 200,904.15 and 85,142.95 is: 117,496.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,583.76 : 200,904.15 = 85,142.95 : x
  2. Step 2: Convert to fraction form
    145,583.76/200,904.15 = 85,142.95/x
  3. Step 3: Cross multiply
    145,583.76x = 200,904.15 × 85,142.95
  4. Step 4: Simplify right side
    145,583.76x = 17,105,571,998.24
  5. Step 5: Solve for x
    x = 17,105,571,998.24/145,583.76
  6. Step 6: Final answer
    x = 117,496.43

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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.