Home / 145,199.82-217,807.92-51,705.58

Finding the Fourth Proportional to 145,199.82, 217,807.92 and 51,705.58

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Solution

The fourth proportional to 145,199.82, 217,807.92 and 51,705.58 is: 77,561.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,199.82 : 217,807.92 = 51,705.58 : x
  2. Step 2: Convert to fraction form
    145,199.82/217,807.92 = 51,705.58/x
  3. Step 3: Cross multiply
    145,199.82x = 217,807.92 × 51,705.58
  4. Step 4: Simplify right side
    145,199.82x = 11,261,884,832.19
  5. Step 5: Solve for x
    x = 11,261,884,832.19/145,199.82
  6. Step 6: Final answer
    x = 77,561.29

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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.