Home / 102,129,768.48-140,938,919.28-55,720,026.48

Finding the Fourth Proportional to 102,129,768.48, 140,938,919.28 and 55,720,026.48

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Solution

The fourth proportional to 102,129,768.48, 140,938,919.28 and 55,720,026.48 is: 76,893,548.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,129,768.48 : 140,938,919.28 = 55,720,026.48 : x
  2. Step 2: Convert to fraction form
    102,129,768.48/140,938,919.28 = 55,720,026.48/x
  3. Step 3: Cross multiply
    102,129,768.48x = 140,938,919.28 × 55,720,026.48
  4. Step 4: Simplify right side
    102,129,768.48x = 7,853,120,314,344,182
  5. Step 5: Solve for x
    x = 7,853,120,314,344,182/102,129,768.48
  6. Step 6: Final answer
    x = 76,893,548.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.