Home / 210,280.09-315,424.56-75,352.95

Finding the Fourth Proportional to 210,280.09, 315,424.56 and 75,352.95

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Solution

The fourth proportional to 210,280.09, 315,424.56 and 75,352.95 is: 113,031.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,280.09 : 315,424.56 = 75,352.95 : x
  2. Step 2: Convert to fraction form
    210,280.09/315,424.56 = 75,352.95/x
  3. Step 3: Cross multiply
    210,280.09x = 315,424.56 × 75,352.95
  4. Step 4: Simplify right side
    210,280.09x = 23,768,171,098.45
  5. Step 5: Solve for x
    x = 23,768,171,098.45/210,280.09
  6. Step 6: Final answer
    x = 113,031.01

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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.