Home / 109,486.44-151,118.81-61,767.47

Finding the Fourth Proportional to 109,486.44, 151,118.81 and 61,767.47

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Solution

The fourth proportional to 109,486.44, 151,118.81 and 61,767.47 is: 85,254.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,486.44 : 151,118.81 = 61,767.47 : x
  2. Step 2: Convert to fraction form
    109,486.44/151,118.81 = 61,767.47/x
  3. Step 3: Cross multiply
    109,486.44x = 151,118.81 × 61,767.47
  4. Step 4: Simplify right side
    109,486.44x = 9,334,226,528.63
  5. Step 5: Solve for x
    x = 9,334,226,528.63/109,486.44
  6. Step 6: Final answer
    x = 85,254.63

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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.