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Finding the Fourth Proportional to 121,256.69, 167,339.31 and 67,541.63

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Solution

The fourth proportional to 121,256.69, 167,339.31 and 67,541.63 is: 93,210.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,256.69 : 167,339.31 = 67,541.63 : x
  2. Step 2: Convert to fraction form
    121,256.69/167,339.31 = 67,541.63/x
  3. Step 3: Cross multiply
    121,256.69x = 167,339.31 × 67,541.63
  4. Step 4: Simplify right side
    121,256.69x = 11,302,369,760.48
  5. Step 5: Solve for x
    x = 11,302,369,760.48/121,256.69
  6. Step 6: Final answer
    x = 93,210.28

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1.5x scale

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.