Home / 145,077.12-217,615.14-45,243

Finding the Fourth Proportional to 145,077.12, 217,615.14 and 45,243

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Solution

The fourth proportional to 145,077.12, 217,615.14 and 45,243 is: 67,864.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,077.12 : 217,615.14 = 45,243 : x
  2. Step 2: Convert to fraction form
    145,077.12/217,615.14 = 45,243/x
  3. Step 3: Cross multiply
    145,077.12x = 217,615.14 × 45,243
  4. Step 4: Simplify right side
    145,077.12x = 9,845,561,779.02
  5. Step 5: Solve for x
    x = 9,845,561,779.02/145,077.12
  6. Step 6: Final answer
    x = 67,864.33

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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.