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Finding the Fourth Proportional to 88,162.64, 131,314.98 and 86,317.36

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Solution

The fourth proportional to 88,162.64, 131,314.98 and 86,317.36 is: 128,566.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,162.64 : 131,314.98 = 86,317.36 : x
  2. Step 2: Convert to fraction form
    88,162.64/131,314.98 = 86,317.36/x
  3. Step 3: Cross multiply
    88,162.64x = 131,314.98 × 86,317.36
  4. Step 4: Simplify right side
    88,162.64x = 11,334,762,893.33
  5. Step 5: Solve for x
    x = 11,334,762,893.33/88,162.64
  6. Step 6: Final answer
    x = 128,566.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.