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Finding the Fourth Proportional to 118,537.40, 177,806.10 and 39,625.40

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Solution

The fourth proportional to 118,537.40, 177,806.10 and 39,625.40 is: 59,438.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,537.40 : 177,806.10 = 39,625.40 : x
  2. Step 2: Convert to fraction form
    118,537.40/177,806.10 = 39,625.40/x
  3. Step 3: Cross multiply
    118,537.40x = 177,806.10 × 39,625.40
  4. Step 4: Simplify right side
    118,537.40x = 7,045,637,834.94
  5. Step 5: Solve for x
    x = 7,045,637,834.94/118,537.40
  6. Step 6: Final answer
    x = 59,438.10

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1.5x scale

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.