Home / 210,100.05-315,102.03-60,339.15

Finding the Fourth Proportional to 210,100.05, 315,102.03 and 60,339.15

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Solution

The fourth proportional to 210,100.05, 315,102.03 and 60,339.15 is: 90,494.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,100.05 : 315,102.03 = 60,339.15 : x
  2. Step 2: Convert to fraction form
    210,100.05/315,102.03 = 60,339.15/x
  3. Step 3: Cross multiply
    210,100.05x = 315,102.03 × 60,339.15
  4. Step 4: Simplify right side
    210,100.05x = 19,012,988,653.47
  5. Step 5: Solve for x
    x = 19,012,988,653.47/210,100.05
  6. Step 6: Final answer
    x = 90,494.93

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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.