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Finding the Fourth Proportional to 163,686.37, 245,528.87 and 45,357.37

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Solution

The fourth proportional to 163,686.37, 245,528.87 and 45,357.37 is: 68,035.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,686.37 : 245,528.87 = 45,357.37 : x
  2. Step 2: Convert to fraction form
    163,686.37/245,528.87 = 45,357.37/x
  3. Step 3: Cross multiply
    163,686.37x = 245,528.87 × 45,357.37
  4. Step 4: Simplify right side
    163,686.37x = 11,136,543,802.27
  5. Step 5: Solve for x
    x = 11,136,543,802.27/163,686.37
  6. Step 6: Final answer
    x = 68,035.87

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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.