Home / 118,146-177,271.20-61,972.68

Finding the Fourth Proportional to 118,146, 177,271.20 and 61,972.68

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Solution

The fourth proportional to 118,146, 177,271.20 and 61,972.68 is: 92,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,146 : 177,271.20 = 61,972.68 : x
  2. Step 2: Convert to fraction form
    118,146/177,271.20 = 61,972.68/x
  3. Step 3: Cross multiply
    118,146x = 177,271.20 × 61,972.68
  4. Step 4: Simplify right side
    118,146x = 10,985,971,350.82
  5. Step 5: Solve for x
    x = 10,985,971,350.82/118,146
  6. Step 6: Final answer
    x = 92,986.40

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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.