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Finding the Fourth Proportional to 168,779.80, 253,011.30 and 63,669.40

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Solution

The fourth proportional to 168,779.80, 253,011.30 and 63,669.40 is: 95,444.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,779.80 : 253,011.30 = 63,669.40 : x
  2. Step 2: Convert to fraction form
    168,779.80/253,011.30 = 63,669.40/x
  3. Step 3: Cross multiply
    168,779.80x = 253,011.30 × 63,669.40
  4. Step 4: Simplify right side
    168,779.80x = 16,109,077,664.22
  5. Step 5: Solve for x
    x = 16,109,077,664.22/168,779.80
  6. Step 6: Final answer
    x = 95,444.35

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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.