Home / 204,140.90-306,065.55-91,729.10

Finding the Fourth Proportional to 204,140.90, 306,065.55 and 91,729.10

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Solution

The fourth proportional to 204,140.90, 306,065.55 and 91,729.10 is: 137,528.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,140.90 : 306,065.55 = 91,729.10 : x
  2. Step 2: Convert to fraction form
    204,140.90/306,065.55 = 91,729.10/x
  3. Step 3: Cross multiply
    204,140.90x = 306,065.55 × 91,729.10
  4. Step 4: Simplify right side
    204,140.90x = 28,075,117,442.51
  5. Step 5: Solve for x
    x = 28,075,117,442.51/204,140.90
  6. Step 6: Final answer
    x = 137,528.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.