Home / 149,970.12-206,967.84-86,306.52

Finding the Fourth Proportional to 149,970.12, 206,967.84 and 86,306.52

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Solution

The fourth proportional to 149,970.12, 206,967.84 and 86,306.52 is: 119,108.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,970.12 : 206,967.84 = 86,306.52 : x
  2. Step 2: Convert to fraction form
    149,970.12/206,967.84 = 86,306.52/x
  3. Step 3: Cross multiply
    149,970.12x = 206,967.84 × 86,306.52
  4. Step 4: Simplify right side
    149,970.12x = 17,862,674,022.32
  5. Step 5: Solve for x
    x = 17,862,674,022.32/149,970.12
  6. Step 6: Final answer
    x = 119,108.22

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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.