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Finding the Fourth Proportional to 118,762.85, 178,160.68 and 39,899.63

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Solution

The fourth proportional to 118,762.85, 178,160.68 and 39,899.63 is: 59,854.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,762.85 : 178,160.68 = 39,899.63 : x
  2. Step 2: Convert to fraction form
    118,762.85/178,160.68 = 39,899.63/x
  3. Step 3: Cross multiply
    118,762.85x = 178,160.68 × 39,899.63
  4. Step 4: Simplify right side
    118,762.85x = 7,108,545,707.82
  5. Step 5: Solve for x
    x = 7,108,545,707.82/118,762.85
  6. Step 6: Final answer
    x = 59,854.96

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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.