Home / 111,232.12-153,521.66-86,985.04

Finding the Fourth Proportional to 111,232.12, 153,521.66 and 86,985.04

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Solution

The fourth proportional to 111,232.12, 153,521.66 and 86,985.04 is: 120,056.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,232.12 : 153,521.66 = 86,985.04 : x
  2. Step 2: Convert to fraction form
    111,232.12/153,521.66 = 86,985.04/x
  3. Step 3: Cross multiply
    111,232.12x = 153,521.66 × 86,985.04
  4. Step 4: Simplify right side
    111,232.12x = 13,354,087,735.97
  5. Step 5: Solve for x
    x = 13,354,087,735.97/111,232.12
  6. Step 6: Final answer
    x = 120,056.04

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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.