Home / 121,957.04-168,247.32-71,633.36

Finding the Fourth Proportional to 121,957.04, 168,247.32 and 71,633.36

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Solution

The fourth proportional to 121,957.04, 168,247.32 and 71,633.36 is: 98,822.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,957.04 : 168,247.32 = 71,633.36 : x
  2. Step 2: Convert to fraction form
    121,957.04/168,247.32 = 71,633.36/x
  3. Step 3: Cross multiply
    121,957.04x = 168,247.32 × 71,633.36
  4. Step 4: Simplify right side
    121,957.04x = 12,052,120,842.60
  5. Step 5: Solve for x
    x = 12,052,120,842.60/121,957.04
  6. Step 6: Final answer
    x = 98,822.67

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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.