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Finding the Fourth Proportional to 145,494.70, 218,295.35 and 61,276.06

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Solution

The fourth proportional to 145,494.70, 218,295.35 and 61,276.06 is: 91,936.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,494.70 : 218,295.35 = 61,276.06 : x
  2. Step 2: Convert to fraction form
    145,494.70/218,295.35 = 61,276.06/x
  3. Step 3: Cross multiply
    145,494.70x = 218,295.35 × 61,276.06
  4. Step 4: Simplify right side
    145,494.70x = 13,376,278,964.32
  5. Step 5: Solve for x
    x = 13,376,278,964.32/145,494.70
  6. Step 6: Final answer
    x = 91,936.54

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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.