Home / 210,618.02-315,943.35-70,377.14

Finding the Fourth Proportional to 210,618.02, 315,943.35 and 70,377.14

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Solution

The fourth proportional to 210,618.02, 315,943.35 and 70,377.14 is: 105,571.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,618.02 : 315,943.35 = 70,377.14 : x
  2. Step 2: Convert to fraction form
    210,618.02/315,943.35 = 70,377.14/x
  3. Step 3: Cross multiply
    210,618.02x = 315,943.35 × 70,377.14
  4. Step 4: Simplify right side
    210,618.02x = 22,235,189,375.02
  5. Step 5: Solve for x
    x = 22,235,189,375.02/210,618.02
  6. Step 6: Final answer
    x = 105,571.16

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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.