Home / 147,296.26-203,271.21-83,635.78

Finding the Fourth Proportional to 147,296.26, 203,271.21 and 83,635.78

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Solution

The fourth proportional to 147,296.26, 203,271.21 and 83,635.78 is: 115,418.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,296.26 : 203,271.21 = 83,635.78 : x
  2. Step 2: Convert to fraction form
    147,296.26/203,271.21 = 83,635.78/x
  3. Step 3: Cross multiply
    147,296.26x = 203,271.21 × 83,635.78
  4. Step 4: Simplify right side
    147,296.26x = 17,000,746,199.89
  5. Step 5: Solve for x
    x = 17,000,746,199.89/147,296.26
  6. Step 6: Final answer
    x = 115,418.72

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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.