Home / 117,528.12-162,188.64-63,814.50

Finding the Fourth Proportional to 117,528.12, 162,188.64 and 63,814.50

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Solution

The fourth proportional to 117,528.12, 162,188.64 and 63,814.50 is: 88,063.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,528.12 : 162,188.64 = 63,814.50 : x
  2. Step 2: Convert to fraction form
    117,528.12/162,188.64 = 63,814.50/x
  3. Step 3: Cross multiply
    117,528.12x = 162,188.64 × 63,814.50
  4. Step 4: Simplify right side
    117,528.12x = 10,349,986,967.28
  5. Step 5: Solve for x
    x = 10,349,986,967.28/117,528.12
  6. Step 6: Final answer
    x = 88,063.92

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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.