Home / 111,421.03-153,760.20-60,433.60

Finding the Fourth Proportional to 111,421.03, 153,760.20 and 60,433.60

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Solution

The fourth proportional to 111,421.03, 153,760.20 and 60,433.60 is: 83,397.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,421.03 : 153,760.20 = 60,433.60 : x
  2. Step 2: Convert to fraction form
    111,421.03/153,760.20 = 60,433.60/x
  3. Step 3: Cross multiply
    111,421.03x = 153,760.20 × 60,433.60
  4. Step 4: Simplify right side
    111,421.03x = 9,292,282,422.72
  5. Step 5: Solve for x
    x = 9,292,282,422.72/111,421.03
  6. Step 6: Final answer
    x = 83,397.92

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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.