Home / 98,006.45-147,083.66-71,779.19

Finding the Fourth Proportional to 98,006.45, 147,083.66 and 71,779.19

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Solution

The fourth proportional to 98,006.45, 147,083.66 and 71,779.19 is: 107,722.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,006.45 : 147,083.66 = 71,779.19 : x
  2. Step 2: Convert to fraction form
    98,006.45/147,083.66 = 71,779.19/x
  3. Step 3: Cross multiply
    98,006.45x = 147,083.66 × 71,779.19
  4. Step 4: Simplify right side
    98,006.45x = 10,557,545,977.04
  5. Step 5: Solve for x
    x = 10,557,545,977.04/98,006.45
  6. Step 6: Final answer
    x = 107,722.97

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1.5x scale

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.