Home / 163,769.48-245,145.72-88,703.20

Finding the Fourth Proportional to 163,769.48, 245,145.72 and 88,703.20

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Solution

The fourth proportional to 163,769.48, 245,145.72 and 88,703.20 is: 132,779.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,769.48 : 245,145.72 = 88,703.20 : x
  2. Step 2: Convert to fraction form
    163,769.48/245,145.72 = 88,703.20/x
  3. Step 3: Cross multiply
    163,769.48x = 245,145.72 × 88,703.20
  4. Step 4: Simplify right side
    163,769.48x = 21,745,209,830.30
  5. Step 5: Solve for x
    x = 21,745,209,830.30/163,769.48
  6. Step 6: Final answer
    x = 132,779.38

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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.