Home / 148,761.96-205,293.98-80,779.07

Finding the Fourth Proportional to 148,761.96, 205,293.98 and 80,779.07

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Solution

The fourth proportional to 148,761.96, 205,293.98 and 80,779.07 is: 111,476.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,761.96 : 205,293.98 = 80,779.07 : x
  2. Step 2: Convert to fraction form
    148,761.96/205,293.98 = 80,779.07/x
  3. Step 3: Cross multiply
    148,761.96x = 205,293.98 × 80,779.07
  4. Step 4: Simplify right side
    148,761.96x = 16,583,455,350.63
  5. Step 5: Solve for x
    x = 16,583,455,350.63/148,761.96
  6. Step 6: Final answer
    x = 111,476.45

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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.