Home / 145,090.70-217,504.74-51,574.58

Finding the Fourth Proportional to 145,090.70, 217,504.74 and 51,574.58

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Solution

The fourth proportional to 145,090.70, 217,504.74 and 51,574.58 is: 77,315.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,090.70 : 217,504.74 = 51,574.58 : x
  2. Step 2: Convert to fraction form
    145,090.70/217,504.74 = 51,574.58/x
  3. Step 3: Cross multiply
    145,090.70x = 217,504.74 × 51,574.58
  4. Step 4: Simplify right side
    145,090.70x = 11,217,715,613.51
  5. Step 5: Solve for x
    x = 11,217,715,613.51/145,090.70
  6. Step 6: Final answer
    x = 77,315.19

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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.