Home / 114,423.20-171,634.80-77,098.40

Finding the Fourth Proportional to 114,423.20, 171,634.80 and 77,098.40

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Solution

The fourth proportional to 114,423.20, 171,634.80 and 77,098.40 is: 115,647.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,423.20 : 171,634.80 = 77,098.40 : x
  2. Step 2: Convert to fraction form
    114,423.20/171,634.80 = 77,098.40/x
  3. Step 3: Cross multiply
    114,423.20x = 171,634.80 × 77,098.40
  4. Step 4: Simplify right side
    114,423.20x = 13,232,768,464.32
  5. Step 5: Solve for x
    x = 13,232,768,464.32/114,423.20
  6. Step 6: Final answer
    x = 115,647.60

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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.