Home / 111,704.48-154,148.28-61,403.12

Finding the Fourth Proportional to 111,704.48, 154,148.28 and 61,403.12

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Solution

The fourth proportional to 111,704.48, 154,148.28 and 61,403.12 is: 84,734.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,704.48 : 154,148.28 = 61,403.12 : x
  2. Step 2: Convert to fraction form
    111,704.48/154,148.28 = 61,403.12/x
  3. Step 3: Cross multiply
    111,704.48x = 154,148.28 × 61,403.12
  4. Step 4: Simplify right side
    111,704.48x = 9,465,185,334.63
  5. Step 5: Solve for x
    x = 9,465,185,334.63/111,704.48
  6. Step 6: Final answer
    x = 84,734.16

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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.