Home / 124,658.40-186,987.60-109,106.40

Finding the Fourth Proportional to 124,658.40, 186,987.60 and 109,106.40

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Solution

The fourth proportional to 124,658.40, 186,987.60 and 109,106.40 is: 163,659.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,658.40 : 186,987.60 = 109,106.40 : x
  2. Step 2: Convert to fraction form
    124,658.40/186,987.60 = 109,106.40/x
  3. Step 3: Cross multiply
    124,658.40x = 186,987.60 × 109,106.40
  4. Step 4: Simplify right side
    124,658.40x = 20,401,543,880.64
  5. Step 5: Solve for x
    x = 20,401,543,880.64/124,658.40
  6. Step 6: Final answer
    x = 163,659.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.