Home / 163,764.48-245,646.72-90,359.04

Finding the Fourth Proportional to 163,764.48, 245,646.72 and 90,359.04

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Solution

The fourth proportional to 163,764.48, 245,646.72 and 90,359.04 is: 135,538.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,764.48 : 245,646.72 = 90,359.04 : x
  2. Step 2: Convert to fraction form
    163,764.48/245,646.72 = 90,359.04/x
  3. Step 3: Cross multiply
    163,764.48x = 245,646.72 × 90,359.04
  4. Step 4: Simplify right side
    163,764.48x = 22,196,401,798.35
  5. Step 5: Solve for x
    x = 22,196,401,798.35/163,764.48
  6. Step 6: Final answer
    x = 135,538.56

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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.