Home / 135,900.48-187,631.38-88,289.50

Finding the Fourth Proportional to 135,900.48, 187,631.38 and 88,289.50

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Solution

The fourth proportional to 135,900.48, 187,631.38 and 88,289.50 is: 121,897.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,900.48 : 187,631.38 = 88,289.50 : x
  2. Step 2: Convert to fraction form
    135,900.48/187,631.38 = 88,289.50/x
  3. Step 3: Cross multiply
    135,900.48x = 187,631.38 × 88,289.50
  4. Step 4: Simplify right side
    135,900.48x = 16,565,880,724.51
  5. Step 5: Solve for x
    x = 16,565,880,724.51/135,900.48
  6. Step 6: Final answer
    x = 121,897.15

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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.