Home / 140,547.45-210,483.33-80,393.61

Finding the Fourth Proportional to 140,547.45, 210,483.33 and 80,393.61

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Solution

The fourth proportional to 140,547.45, 210,483.33 and 80,393.61 is: 120,397.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,547.45 : 210,483.33 = 80,393.61 : x
  2. Step 2: Convert to fraction form
    140,547.45/210,483.33 = 80,393.61/x
  3. Step 3: Cross multiply
    140,547.45x = 210,483.33 × 80,393.61
  4. Step 4: Simplify right side
    140,547.45x = 16,921,514,743.52
  5. Step 5: Solve for x
    x = 16,921,514,743.52/140,547.45
  6. Step 6: Final answer
    x = 120,397.17

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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.