Home / 115,569.06-159,501.13-66,509.64

Finding the Fourth Proportional to 115,569.06, 159,501.13 and 66,509.64

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Solution

The fourth proportional to 115,569.06, 159,501.13 and 66,509.64 is: 91,792.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,569.06 : 159,501.13 = 66,509.64 : x
  2. Step 2: Convert to fraction form
    115,569.06/159,501.13 = 66,509.64/x
  3. Step 3: Cross multiply
    115,569.06x = 159,501.13 × 66,509.64
  4. Step 4: Simplify right side
    115,569.06x = 10,608,362,735.89
  5. Step 5: Solve for x
    x = 10,608,362,735.89/115,569.06
  6. Step 6: Final answer
    x = 91,792.41

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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.