Home / 118,870.07-178,304.78-30,123.32

Finding the Fourth Proportional to 118,870.07, 178,304.78 and 30,123.32

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Solution

The fourth proportional to 118,870.07, 178,304.78 and 30,123.32 is: 45,184.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,870.07 : 178,304.78 = 30,123.32 : x
  2. Step 2: Convert to fraction form
    118,870.07/178,304.78 = 30,123.32/x
  3. Step 3: Cross multiply
    118,870.07x = 178,304.78 × 30,123.32
  4. Step 4: Simplify right side
    118,870.07x = 5,371,131,129.25
  5. Step 5: Solve for x
    x = 5,371,131,129.25/118,870.07
  6. Step 6: Final answer
    x = 45,184.89

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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.