Home / 115,904.80-173,857.20-56,778.40

Finding the Fourth Proportional to 115,904.80, 173,857.20 and 56,778.40

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Solution

The fourth proportional to 115,904.80, 173,857.20 and 56,778.40 is: 85,167.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,904.80 : 173,857.20 = 56,778.40 : x
  2. Step 2: Convert to fraction form
    115,904.80/173,857.20 = 56,778.40/x
  3. Step 3: Cross multiply
    115,904.80x = 173,857.20 × 56,778.40
  4. Step 4: Simplify right side
    115,904.80x = 9,871,333,644.48
  5. Step 5: Solve for x
    x = 9,871,333,644.48/115,904.80
  6. Step 6: Final answer
    x = 85,167.60

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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.