Home / 127,823.67-176,397.26-74,140.47

Finding the Fourth Proportional to 127,823.67, 176,397.26 and 74,140.47

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Solution

The fourth proportional to 127,823.67, 176,397.26 and 74,140.47 is: 102,314.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,823.67 : 176,397.26 = 74,140.47 : x
  2. Step 2: Convert to fraction form
    127,823.67/176,397.26 = 74,140.47/x
  3. Step 3: Cross multiply
    127,823.67x = 176,397.26 × 74,140.47
  4. Step 4: Simplify right side
    127,823.67x = 13,078,175,392.41
  5. Step 5: Solve for x
    x = 13,078,175,392.41/127,823.67
  6. Step 6: Final answer
    x = 102,314.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.