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Finding the Fourth Proportional to 145,656.84, 218,494.68 and 45,820.92

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Solution

The fourth proportional to 145,656.84, 218,494.68 and 45,820.92 is: 68,734.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,656.84 : 218,494.68 = 45,820.92 : x
  2. Step 2: Convert to fraction form
    145,656.84/218,494.68 = 45,820.92/x
  3. Step 3: Cross multiply
    145,656.84x = 218,494.68 × 45,820.92
  4. Step 4: Simplify right side
    145,656.84x = 10,011,627,252.71
  5. Step 5: Solve for x
    x = 10,011,627,252.71/145,656.84
  6. Step 6: Final answer
    x = 68,734.34

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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.