Home / 140,566.90-210,879.15-47,139.70

Finding the Fourth Proportional to 140,566.90, 210,879.15 and 47,139.70

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Solution

The fourth proportional to 140,566.90, 210,879.15 and 47,139.70 is: 70,719.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,566.90 : 210,879.15 = 47,139.70 : x
  2. Step 2: Convert to fraction form
    140,566.90/210,879.15 = 47,139.70/x
  3. Step 3: Cross multiply
    140,566.90x = 210,879.15 × 47,139.70
  4. Step 4: Simplify right side
    140,566.90x = 9,940,779,867.26
  5. Step 5: Solve for x
    x = 9,940,779,867.26/140,566.90
  6. Step 6: Final answer
    x = 70,719.21

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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.