Home / 128,368.17-192,597.86-57,284.35

Finding the Fourth Proportional to 128,368.17, 192,597.86 and 57,284.35

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Solution

The fourth proportional to 128,368.17, 192,597.86 and 57,284.35 is: 85,946.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,368.17 : 192,597.86 = 57,284.35 : x
  2. Step 2: Convert to fraction form
    128,368.17/192,597.86 = 57,284.35/x
  3. Step 3: Cross multiply
    128,368.17x = 192,597.86 × 57,284.35
  4. Step 4: Simplify right side
    128,368.17x = 11,032,842,883.21
  5. Step 5: Solve for x
    x = 11,032,842,883.21/128,368.17
  6. Step 6: Final answer
    x = 85,946.87

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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.