Home / 131,779.45-181,674.88-83,357.29

Finding the Fourth Proportional to 131,779.45, 181,674.88 and 83,357.29

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Solution

The fourth proportional to 131,779.45, 181,674.88 and 83,357.29 is: 114,918.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,779.45 : 181,674.88 = 83,357.29 : x
  2. Step 2: Convert to fraction form
    131,779.45/181,674.88 = 83,357.29/x
  3. Step 3: Cross multiply
    131,779.45x = 181,674.88 × 83,357.29
  4. Step 4: Simplify right side
    131,779.45x = 15,143,925,657.88
  5. Step 5: Solve for x
    x = 15,143,925,657.88/131,779.45
  6. Step 6: Final answer
    x = 114,918.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.