Home / 210,669.69-315,856.90-77,532.63

Finding the Fourth Proportional to 210,669.69, 315,856.90 and 77,532.63

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Solution

The fourth proportional to 210,669.69, 315,856.90 and 77,532.63 is: 116,244.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,669.69 : 315,856.90 = 77,532.63 : x
  2. Step 2: Convert to fraction form
    210,669.69/315,856.90 = 77,532.63/x
  3. Step 3: Cross multiply
    210,669.69x = 315,856.90 × 77,532.63
  4. Step 4: Simplify right side
    210,669.69x = 24,489,215,073.10
  5. Step 5: Solve for x
    x = 24,489,215,073.10/210,669.69
  6. Step 6: Final answer
    x = 116,244.60

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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.