Home / 149,950.90-206,938.52-86,288.95

Finding the Fourth Proportional to 149,950.90, 206,938.52 and 86,288.95

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Solution

The fourth proportional to 149,950.90, 206,938.52 and 86,288.95 is: 119,082.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,950.90 : 206,938.52 = 86,288.95 : x
  2. Step 2: Convert to fraction form
    149,950.90/206,938.52 = 86,288.95/x
  3. Step 3: Cross multiply
    149,950.90x = 206,938.52 × 86,288.95
  4. Step 4: Simplify right side
    149,950.90x = 17,856,506,980.15
  5. Step 5: Solve for x
    x = 17,856,506,980.15/149,950.90
  6. Step 6: Final answer
    x = 119,082.36

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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.