Home / 118,270.80-177,176.40-105,017.58

Finding the Fourth Proportional to 118,270.80, 177,176.40 and 105,017.58

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Solution

The fourth proportional to 118,270.80, 177,176.40 and 105,017.58 is: 157,322.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,270.80 : 177,176.40 = 105,017.58 : x
  2. Step 2: Convert to fraction form
    118,270.80/177,176.40 = 105,017.58/x
  3. Step 3: Cross multiply
    118,270.80x = 177,176.40 × 105,017.58
  4. Step 4: Simplify right side
    118,270.80x = 18,606,636,761.11
  5. Step 5: Solve for x
    x = 18,606,636,761.11/118,270.80
  6. Step 6: Final answer
    x = 157,322.32

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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.