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Finding the Fourth Proportional to 152,488.47, 210,171.42 and 101,409.96

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Solution

The fourth proportional to 152,488.47, 210,171.42 and 101,409.96 is: 139,771.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,488.47 : 210,171.42 = 101,409.96 : x
  2. Step 2: Convert to fraction form
    152,488.47/210,171.42 = 101,409.96/x
  3. Step 3: Cross multiply
    152,488.47x = 210,171.42 × 101,409.96
  4. Step 4: Simplify right side
    152,488.47x = 21,313,475,295.34
  5. Step 5: Solve for x
    x = 21,313,475,295.34/152,488.47
  6. Step 6: Final answer
    x = 139,771.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.