Home / 121,875.06-168,182.61-70,889.25

Finding the Fourth Proportional to 121,875.06, 168,182.61 and 70,889.25

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Solution

The fourth proportional to 121,875.06, 168,182.61 and 70,889.25 is: 97,824.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,875.06 : 168,182.61 = 70,889.25 : x
  2. Step 2: Convert to fraction form
    121,875.06/168,182.61 = 70,889.25/x
  3. Step 3: Cross multiply
    121,875.06x = 168,182.61 × 70,889.25
  4. Step 4: Simplify right side
    121,875.06x = 11,922,339,450.79
  5. Step 5: Solve for x
    x = 11,922,339,450.79/121,875.06
  6. Step 6: Final answer
    x = 97,824.27

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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.