Home / 163,538.16-245,410.92-88,709.28

Finding the Fourth Proportional to 163,538.16, 245,410.92 and 88,709.28

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Solution

The fourth proportional to 163,538.16, 245,410.92 and 88,709.28 is: 133,120.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,538.16 : 245,410.92 = 88,709.28 : x
  2. Step 2: Convert to fraction form
    163,538.16/245,410.92 = 88,709.28/x
  3. Step 3: Cross multiply
    163,538.16x = 245,410.92 × 88,709.28
  4. Step 4: Simplify right side
    163,538.16x = 21,770,226,017.34
  5. Step 5: Solve for x
    x = 21,770,226,017.34/163,538.16
  6. Step 6: Final answer
    x = 133,120.16

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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.