Home / 145,331.56-200,551.10-84,907.80

Finding the Fourth Proportional to 145,331.56, 200,551.10 and 84,907.80

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Solution

The fourth proportional to 145,331.56, 200,551.10 and 84,907.80 is: 117,168.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,331.56 : 200,551.10 = 84,907.80 : x
  2. Step 2: Convert to fraction form
    145,331.56/200,551.10 = 84,907.80/x
  3. Step 3: Cross multiply
    145,331.56x = 200,551.10 × 84,907.80
  4. Step 4: Simplify right side
    145,331.56x = 17,028,352,688.58
  5. Step 5: Solve for x
    x = 17,028,352,688.58/145,331.56
  6. Step 6: Final answer
    x = 117,168.99

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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.