Home / 145,971.90-218,939.03-46,142.19

Finding the Fourth Proportional to 145,971.90, 218,939.03 and 46,142.19

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Solution

The fourth proportional to 145,971.90, 218,939.03 and 46,142.19 is: 69,207.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,971.90 : 218,939.03 = 46,142.19 : x
  2. Step 2: Convert to fraction form
    145,971.90/218,939.03 = 46,142.19/x
  3. Step 3: Cross multiply
    145,971.90x = 218,939.03 × 46,142.19
  4. Step 4: Simplify right side
    145,971.90x = 10,102,326,089.96
  5. Step 5: Solve for x
    x = 10,102,326,089.96/145,971.90
  6. Step 6: Final answer
    x = 69,207.33

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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.