Home / 145,296.81-217,953.45-51,802.56

Finding the Fourth Proportional to 145,296.81, 217,953.45 and 51,802.56

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Solution

The fourth proportional to 145,296.81, 217,953.45 and 51,802.56 is: 77,706.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,296.81 : 217,953.45 = 51,802.56 : x
  2. Step 2: Convert to fraction form
    145,296.81/217,953.45 = 51,802.56/x
  3. Step 3: Cross multiply
    145,296.81x = 217,953.45 × 51,802.56
  4. Step 4: Simplify right side
    145,296.81x = 11,290,546,670.83
  5. Step 5: Solve for x
    x = 11,290,546,670.83/145,296.81
  6. Step 6: Final answer
    x = 77,706.78

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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.