Home / 111,419.40-153,758.30-60,431.92

Finding the Fourth Proportional to 111,419.40, 153,758.30 and 60,431.92

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Solution

The fourth proportional to 111,419.40, 153,758.30 and 60,431.92 is: 83,395.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,419.40 : 153,758.30 = 60,431.92 : x
  2. Step 2: Convert to fraction form
    111,419.40/153,758.30 = 60,431.92/x
  3. Step 3: Cross multiply
    111,419.40x = 153,758.30 × 60,431.92
  4. Step 4: Simplify right side
    111,419.40x = 9,291,909,803.20
  5. Step 5: Solve for x
    x = 9,291,909,803.20/111,419.40
  6. Step 6: Final answer
    x = 83,395.80

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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.