Home / 147,389.30-203,339.49-90,702.26

Finding the Fourth Proportional to 147,389.30, 203,339.49 and 90,702.26

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Solution

The fourth proportional to 147,389.30, 203,339.49 and 90,702.26 is: 125,133.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,389.30 : 203,339.49 = 90,702.26 : x
  2. Step 2: Convert to fraction form
    147,389.30/203,339.49 = 90,702.26/x
  3. Step 3: Cross multiply
    147,389.30x = 203,339.49 × 90,702.26
  4. Step 4: Simplify right side
    147,389.30x = 18,443,351,290.25
  5. Step 5: Solve for x
    x = 18,443,351,290.25/147,389.30
  6. Step 6: Final answer
    x = 125,133.58

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1.5x scale

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.