Home / 111,176.92-153,439.02-65,851.36

Finding the Fourth Proportional to 111,176.92, 153,439.02 and 65,851.36

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Solution

The fourth proportional to 111,176.92, 153,439.02 and 65,851.36 is: 90,883.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,176.92 : 153,439.02 = 65,851.36 : x
  2. Step 2: Convert to fraction form
    111,176.92/153,439.02 = 65,851.36/x
  3. Step 3: Cross multiply
    111,176.92x = 153,439.02 × 65,851.36
  4. Step 4: Simplify right side
    111,176.92x = 10,104,168,144.07
  5. Step 5: Solve for x
    x = 10,104,168,144.07/111,176.92
  6. Step 6: Final answer
    x = 90,883.68

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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.