Home / 118,639.16-177,834.76-39,688.44

Finding the Fourth Proportional to 118,639.16, 177,834.76 and 39,688.44

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Solution

The fourth proportional to 118,639.16, 177,834.76 and 39,688.44 is: 59,491.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,639.16 : 177,834.76 = 39,688.44 : x
  2. Step 2: Convert to fraction form
    118,639.16/177,834.76 = 39,688.44/x
  3. Step 3: Cross multiply
    118,639.16x = 177,834.76 × 39,688.44
  4. Step 4: Simplify right side
    118,639.16x = 7,057,984,202.17
  5. Step 5: Solve for x
    x = 7,057,984,202.17/118,639.16
  6. Step 6: Final answer
    x = 59,491.18

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Why These Related Problems?

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