Home / 103,845.31-143,306.34-56,098.51

Finding the Fourth Proportional to 103,845.31, 143,306.34 and 56,098.51

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Solution

The fourth proportional to 103,845.31, 143,306.34 and 56,098.51 is: 77,415.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,845.31 : 143,306.34 = 56,098.51 : x
  2. Step 2: Convert to fraction form
    103,845.31/143,306.34 = 56,098.51/x
  3. Step 3: Cross multiply
    103,845.31x = 143,306.34 × 56,098.51
  4. Step 4: Simplify right side
    103,845.31x = 8,039,272,147.55
  5. Step 5: Solve for x
    x = 8,039,272,147.55/103,845.31
  6. Step 6: Final answer
    x = 77,415.84

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1.5x scale

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.