Home / 123,928.16-171,021.42-70,223.64

Finding the Fourth Proportional to 123,928.16, 171,021.42 and 70,223.64

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Solution

The fourth proportional to 123,928.16, 171,021.42 and 70,223.64 is: 96,908.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,928.16 : 171,021.42 = 70,223.64 : x
  2. Step 2: Convert to fraction form
    123,928.16/171,021.42 = 70,223.64/x
  3. Step 3: Cross multiply
    123,928.16x = 171,021.42 × 70,223.64
  4. Step 4: Simplify right side
    123,928.16x = 12,009,746,630.37
  5. Step 5: Solve for x
    x = 12,009,746,630.37/123,928.16
  6. Step 6: Final answer
    x = 96,908.94

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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.