Home / 118,271.90-177,436.20-39,386.81

Finding the Fourth Proportional to 118,271.90, 177,436.20 and 39,386.81

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Solution

The fourth proportional to 118,271.90, 177,436.20 and 39,386.81 is: 59,089.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,271.90 : 177,436.20 = 39,386.81 : x
  2. Step 2: Convert to fraction form
    118,271.90/177,436.20 = 39,386.81/x
  3. Step 3: Cross multiply
    118,271.90x = 177,436.20 × 39,386.81
  4. Step 4: Simplify right side
    118,271.90x = 6,988,645,896.52
  5. Step 5: Solve for x
    x = 6,988,645,896.52/118,271.90
  6. Step 6: Final answer
    x = 59,089.66

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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.