Home / 112,809.92-169,215.28-28,570.08

Finding the Fourth Proportional to 112,809.92, 169,215.28 and 28,570.08

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Solution

The fourth proportional to 112,809.92, 169,215.28 and 28,570.08 is: 42,855.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,809.92 : 169,215.28 = 28,570.08 : x
  2. Step 2: Convert to fraction form
    112,809.92/169,215.28 = 28,570.08/x
  3. Step 3: Cross multiply
    112,809.92x = 169,215.28 × 28,570.08
  4. Step 4: Simplify right side
    112,809.92x = 4,834,494,086.82
  5. Step 5: Solve for x
    x = 4,834,494,086.82/112,809.92
  6. Step 6: Final answer
    x = 42,855.22

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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.