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Finding the Fourth Proportional to 116,430.19, 174,382.71 and 81,525.67

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Solution

The fourth proportional to 116,430.19, 174,382.71 and 81,525.67 is: 122,104.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,430.19 : 174,382.71 = 81,525.67 : x
  2. Step 2: Convert to fraction form
    116,430.19/174,382.71 = 81,525.67/x
  3. Step 3: Cross multiply
    116,430.19x = 174,382.71 × 81,525.67
  4. Step 4: Simplify right side
    116,430.19x = 14,216,667,269.17
  5. Step 5: Solve for x
    x = 14,216,667,269.17/116,430.19
  6. Step 6: Final answer
    x = 122,104.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.