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Finding the Fourth Proportional to 121,339.47, 167,448.60 and 67,623.27

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Solution

The fourth proportional to 121,339.47, 167,448.60 and 67,623.27 is: 93,320.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,339.47 : 167,448.60 = 67,623.27 : x
  2. Step 2: Convert to fraction form
    121,339.47/167,448.60 = 67,623.27/x
  3. Step 3: Cross multiply
    121,339.47x = 167,448.60 × 67,623.27
  4. Step 4: Simplify right side
    121,339.47x = 11,323,421,888.92
  5. Step 5: Solve for x
    x = 11,323,421,888.92/121,339.47
  6. Step 6: Final answer
    x = 93,320.19

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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.