Home / 150,639.13-207,880.18-86,975.56

Finding the Fourth Proportional to 150,639.13, 207,880.18 and 86,975.56

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Solution

The fourth proportional to 150,639.13, 207,880.18 and 86,975.56 is: 120,025.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,639.13 : 207,880.18 = 86,975.56 : x
  2. Step 2: Convert to fraction form
    150,639.13/207,880.18 = 86,975.56/x
  3. Step 3: Cross multiply
    150,639.13x = 207,880.18 × 86,975.56
  4. Step 4: Simplify right side
    150,639.13x = 18,080,495,068.40
  5. Step 5: Solve for x
    x = 18,080,495,068.40/150,639.13
  6. Step 6: Final answer
    x = 120,025.22

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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.