Home / 149,541.71-206,386.14-85,878.14

Finding the Fourth Proportional to 149,541.71, 206,386.14 and 85,878.14

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Solution

The fourth proportional to 149,541.71, 206,386.14 and 85,878.14 is: 118,522.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,541.71 : 206,386.14 = 85,878.14 : x
  2. Step 2: Convert to fraction form
    149,541.71/206,386.14 = 85,878.14/x
  3. Step 3: Cross multiply
    149,541.71x = 206,386.14 × 85,878.14
  4. Step 4: Simplify right side
    149,541.71x = 17,724,057,824.98
  5. Step 5: Solve for x
    x = 17,724,057,824.98/149,541.71
  6. Step 6: Final answer
    x = 118,522.50

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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.