Home / 115,931.60-173,897.40-56,736.80

Finding the Fourth Proportional to 115,931.60, 173,897.40 and 56,736.80

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Solution

The fourth proportional to 115,931.60, 173,897.40 and 56,736.80 is: 85,105.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,931.60 : 173,897.40 = 56,736.80 : x
  2. Step 2: Convert to fraction form
    115,931.60/173,897.40 = 56,736.80/x
  3. Step 3: Cross multiply
    115,931.60x = 173,897.40 × 56,736.80
  4. Step 4: Simplify right side
    115,931.60x = 9,866,382,004.32
  5. Step 5: Solve for x
    x = 9,866,382,004.32/115,931.60
  6. Step 6: Final answer
    x = 85,105.20

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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.