Home / 109,639.51-151,305.01-64,350.16

Finding the Fourth Proportional to 109,639.51, 151,305.01 and 64,350.16

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Solution

The fourth proportional to 109,639.51, 151,305.01 and 64,350.16 is: 88,804.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,639.51 : 151,305.01 = 64,350.16 : x
  2. Step 2: Convert to fraction form
    109,639.51/151,305.01 = 64,350.16/x
  3. Step 3: Cross multiply
    109,639.51x = 151,305.01 × 64,350.16
  4. Step 4: Simplify right side
    109,639.51x = 9,736,500,845.78
  5. Step 5: Solve for x
    x = 9,736,500,845.78/109,639.51
  6. Step 6: Final answer
    x = 88,804.67

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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.