Home / 258,622.12-387,504.06-90,053.32

Finding the Fourth Proportional to 258,622.12, 387,504.06 and 90,053.32

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Solution

The fourth proportional to 258,622.12, 387,504.06 and 90,053.32 is: 134,930.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,622.12 : 387,504.06 = 90,053.32 : x
  2. Step 2: Convert to fraction form
    258,622.12/387,504.06 = 90,053.32/x
  3. Step 3: Cross multiply
    258,622.12x = 387,504.06 × 90,053.32
  4. Step 4: Simplify right side
    258,622.12x = 34,896,027,116.48
  5. Step 5: Solve for x
    x = 34,896,027,116.48/258,622.12
  6. Step 6: Final answer
    x = 134,930.56

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1.5x scale

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.