Home / 163,456.11-245,198.28-45,127.47

Finding the Fourth Proportional to 163,456.11, 245,198.28 and 45,127.47

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Solution

The fourth proportional to 163,456.11, 245,198.28 and 45,127.47 is: 67,695.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,456.11 : 245,198.28 = 45,127.47 : x
  2. Step 2: Convert to fraction form
    163,456.11/245,198.28 = 45,127.47/x
  3. Step 3: Cross multiply
    163,456.11x = 245,198.28 × 45,127.47
  4. Step 4: Simplify right side
    163,456.11x = 11,065,178,024.75
  5. Step 5: Solve for x
    x = 11,065,178,024.75/163,456.11
  6. Step 6: Final answer
    x = 67,695.10

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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.