Home / 115,185.36-172,510.08-111,194.40

Finding the Fourth Proportional to 115,185.36, 172,510.08 and 111,194.40

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Solution

The fourth proportional to 115,185.36, 172,510.08 and 111,194.40 is: 166,532.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,185.36 : 172,510.08 = 111,194.40 : x
  2. Step 2: Convert to fraction form
    115,185.36/172,510.08 = 111,194.40/x
  3. Step 3: Cross multiply
    115,185.36x = 172,510.08 × 111,194.40
  4. Step 4: Simplify right side
    115,185.36x = 19,182,154,839.55
  5. Step 5: Solve for x
    x = 19,182,154,839.55/115,185.36
  6. Step 6: Final answer
    x = 166,532.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.