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Finding the Fourth Proportional to 163,506, 245,126.61 and 51,128.34

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Solution

The fourth proportional to 163,506, 245,126.61 and 51,128.34 is: 76,651.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,506 : 245,126.61 = 51,128.34 : x
  2. Step 2: Convert to fraction form
    163,506/245,126.61 = 51,128.34/x
  3. Step 3: Cross multiply
    163,506x = 245,126.61 × 51,128.34
  4. Step 4: Simplify right side
    163,506x = 12,532,916,659.13
  5. Step 5: Solve for x
    x = 12,532,916,659.13/163,506
  6. Step 6: Final answer
    x = 76,651.11

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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.