Home / 91,189.95-125,836.06-57,196.95

Finding the Fourth Proportional to 91,189.95, 125,836.06 and 57,196.95

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Solution

The fourth proportional to 91,189.95, 125,836.06 and 57,196.95 is: 78,927.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,189.95 : 125,836.06 = 57,196.95 : x
  2. Step 2: Convert to fraction form
    91,189.95/125,836.06 = 57,196.95/x
  3. Step 3: Cross multiply
    91,189.95x = 125,836.06 × 57,196.95
  4. Step 4: Simplify right side
    91,189.95x = 7,197,438,832.02
  5. Step 5: Solve for x
    x = 7,197,438,832.02/91,189.95
  6. Step 6: Final answer
    x = 78,927.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.