Home / 121,141.08-167,166.36-75,817.16

Finding the Fourth Proportional to 121,141.08, 167,166.36 and 75,817.16

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Solution

The fourth proportional to 121,141.08, 167,166.36 and 75,817.16 is: 104,622.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,141.08 : 167,166.36 = 75,817.16 : x
  2. Step 2: Convert to fraction form
    121,141.08/167,166.36 = 75,817.16/x
  3. Step 3: Cross multiply
    121,141.08x = 167,166.36 × 75,817.16
  4. Step 4: Simplify right side
    121,141.08x = 12,674,078,662.74
  5. Step 5: Solve for x
    x = 12,674,078,662.74/121,141.08
  6. Step 6: Final answer
    x = 104,622.47

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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.