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Finding the Fourth Proportional to 118,544.58, 177,779.94 and 39,640.34

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Solution

The fourth proportional to 118,544.58, 177,779.94 and 39,640.34 is: 59,448.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,544.58 : 177,779.94 = 39,640.34 : x
  2. Step 2: Convert to fraction form
    118,544.58/177,779.94 = 39,640.34/x
  3. Step 3: Cross multiply
    118,544.58x = 177,779.94 × 39,640.34
  4. Step 4: Simplify right side
    118,544.58x = 7,047,257,266.78
  5. Step 5: Solve for x
    x = 7,047,257,266.78/118,544.58
  6. Step 6: Final answer
    x = 59,448.16

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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.