Home / 128,867.07-193,222.95-57,776.85

Finding the Fourth Proportional to 128,867.07, 193,222.95 and 57,776.85

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Solution

The fourth proportional to 128,867.07, 193,222.95 and 57,776.85 is: 86,630.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,867.07 : 193,222.95 = 57,776.85 : x
  2. Step 2: Convert to fraction form
    128,867.07/193,222.95 = 57,776.85/x
  3. Step 3: Cross multiply
    128,867.07x = 193,222.95 × 57,776.85
  4. Step 4: Simplify right side
    128,867.07x = 11,163,813,398.71
  5. Step 5: Solve for x
    x = 11,163,813,398.71/128,867.07
  6. Step 6: Final answer
    x = 86,630.46

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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.