Home / 140,542.32-210,828.26-45,779.90

Finding the Fourth Proportional to 140,542.32, 210,828.26 and 45,779.90

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Solution

The fourth proportional to 140,542.32, 210,828.26 and 45,779.90 is: 68,674.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,542.32 : 210,828.26 = 45,779.90 : x
  2. Step 2: Convert to fraction form
    140,542.32/210,828.26 = 45,779.90/x
  3. Step 3: Cross multiply
    140,542.32x = 210,828.26 × 45,779.90
  4. Step 4: Simplify right side
    140,542.32x = 9,651,695,376.93
  5. Step 5: Solve for x
    x = 9,651,695,376.93/140,542.32
  6. Step 6: Final answer
    x = 68,674.66

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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.