Home / 210,097.24-315,165.09-83,706.86

Finding the Fourth Proportional to 210,097.24, 315,165.09 and 83,706.86

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Solution

The fourth proportional to 210,097.24, 315,165.09 and 83,706.86 is: 125,567.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,097.24 : 315,165.09 = 83,706.86 : x
  2. Step 2: Convert to fraction form
    210,097.24/315,165.09 = 83,706.86/x
  3. Step 3: Cross multiply
    210,097.24x = 315,165.09 × 83,706.86
  4. Step 4: Simplify right side
    210,097.24x = 26,381,480,065.52
  5. Step 5: Solve for x
    x = 26,381,480,065.52/210,097.24
  6. Step 6: Final answer
    x = 125,567.95

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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.