Home / 103,137.44-142,322.28-60,690.20

Finding the Fourth Proportional to 103,137.44, 142,322.28 and 60,690.20

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Solution

The fourth proportional to 103,137.44, 142,322.28 and 60,690.20 is: 83,748.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,137.44 : 142,322.28 = 60,690.20 : x
  2. Step 2: Convert to fraction form
    103,137.44/142,322.28 = 60,690.20/x
  3. Step 3: Cross multiply
    103,137.44x = 142,322.28 × 60,690.20
  4. Step 4: Simplify right side
    103,137.44x = 8,637,567,637.66
  5. Step 5: Solve for x
    x = 8,637,567,637.66/103,137.44
  6. Step 6: Final answer
    x = 83,748.13

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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.