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Finding the Fourth Proportional to 121,360.17, 167,482.79 and 67,645.63

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Solution

The fourth proportional to 121,360.17, 167,482.79 and 67,645.63 is: 93,354.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,360.17 : 167,482.79 = 67,645.63 : x
  2. Step 2: Convert to fraction form
    121,360.17/167,482.79 = 67,645.63/x
  3. Step 3: Cross multiply
    121,360.17x = 167,482.79 × 67,645.63
  4. Step 4: Simplify right side
    121,360.17x = 11,329,478,843.71
  5. Step 5: Solve for x
    x = 11,329,478,843.71/121,360.17
  6. Step 6: Final answer
    x = 93,354.18

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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.