Home / 210,627.72-315,961.38-77,510.52

Finding the Fourth Proportional to 210,627.72, 315,961.38 and 77,510.52

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Solution

The fourth proportional to 210,627.72, 315,961.38 and 77,510.52 is: 116,273.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,627.72 : 315,961.38 = 77,510.52 : x
  2. Step 2: Convert to fraction form
    210,627.72/315,961.38 = 77,510.52/x
  3. Step 3: Cross multiply
    210,627.72x = 315,961.38 × 77,510.52
  4. Step 4: Simplify right side
    210,627.72x = 24,490,330,863.72
  5. Step 5: Solve for x
    x = 24,490,330,863.72/210,627.72
  6. Step 6: Final answer
    x = 116,273.07

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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.