Home / 121,760.96-168,036.54-74,006.60

Finding the Fourth Proportional to 121,760.96, 168,036.54 and 74,006.60

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Solution

The fourth proportional to 121,760.96, 168,036.54 and 74,006.60 is: 102,133.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,760.96 : 168,036.54 = 74,006.60 : x
  2. Step 2: Convert to fraction form
    121,760.96/168,036.54 = 74,006.60/x
  3. Step 3: Cross multiply
    121,760.96x = 168,036.54 × 74,006.60
  4. Step 4: Simplify right side
    121,760.96x = 12,435,813,001.16
  5. Step 5: Solve for x
    x = 12,435,813,001.16/121,760.96
  6. Step 6: Final answer
    x = 102,133.01

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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.