Home / 122,430.28-168,945.54-67,979.65

Finding the Fourth Proportional to 122,430.28, 168,945.54 and 67,979.65

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Solution

The fourth proportional to 122,430.28, 168,945.54 and 67,979.65 is: 93,807.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,430.28 : 168,945.54 = 67,979.65 : x
  2. Step 2: Convert to fraction form
    122,430.28/168,945.54 = 67,979.65/x
  3. Step 3: Cross multiply
    122,430.28x = 168,945.54 × 67,979.65
  4. Step 4: Simplify right side
    122,430.28x = 11,484,858,255.90
  5. Step 5: Solve for x
    x = 11,484,858,255.90/122,430.28
  6. Step 6: Final answer
    x = 93,807.34

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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.