Home / 103,063.08-155,296.64-84,753.24

Finding the Fourth Proportional to 103,063.08, 155,296.64 and 84,753.24

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Solution

The fourth proportional to 103,063.08, 155,296.64 and 84,753.24 is: 127,707.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,063.08 : 155,296.64 = 84,753.24 : x
  2. Step 2: Convert to fraction form
    103,063.08/155,296.64 = 84,753.24/x
  3. Step 3: Cross multiply
    103,063.08x = 155,296.64 × 84,753.24
  4. Step 4: Simplify right side
    103,063.08x = 13,161,892,977.35
  5. Step 5: Solve for x
    x = 13,161,892,977.35/103,063.08
  6. Step 6: Final answer
    x = 127,707.16

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.