Home / 117,152.78-161,670.58-63,437.63

Finding the Fourth Proportional to 117,152.78, 161,670.58 and 63,437.63

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Solution

The fourth proportional to 117,152.78, 161,670.58 and 63,437.63 is: 87,543.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,152.78 : 161,670.58 = 63,437.63 : x
  2. Step 2: Convert to fraction form
    117,152.78/161,670.58 = 63,437.63/x
  3. Step 3: Cross multiply
    117,152.78x = 161,670.58 × 63,437.63
  4. Step 4: Simplify right side
    117,152.78x = 10,255,997,468.98
  5. Step 5: Solve for x
    x = 10,255,997,468.98/117,152.78
  6. Step 6: Final answer
    x = 87,543.79

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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.