Home / 121,812.03-168,102.95-68,100.93

Finding the Fourth Proportional to 121,812.03, 168,102.95 and 68,100.93

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Solution

The fourth proportional to 121,812.03, 168,102.95 and 68,100.93 is: 93,980.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,812.03 : 168,102.95 = 68,100.93 : x
  2. Step 2: Convert to fraction form
    121,812.03/168,102.95 = 68,100.93/x
  3. Step 3: Cross multiply
    121,812.03x = 168,102.95 × 68,100.93
  4. Step 4: Simplify right side
    121,812.03x = 11,447,966,890.24
  5. Step 5: Solve for x
    x = 11,447,966,890.24/121,812.03
  6. Step 6: Final answer
    x = 93,980.59

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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.