Home / 191,868.45-287,862.82-79,601.64

Finding the Fourth Proportional to 191,868.45, 287,862.82 and 79,601.64

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Solution

The fourth proportional to 191,868.45, 287,862.82 and 79,601.64 is: 119,427.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,868.45 : 287,862.82 = 79,601.64 : x
  2. Step 2: Convert to fraction form
    191,868.45/287,862.82 = 79,601.64/x
  3. Step 3: Cross multiply
    191,868.45x = 287,862.82 × 79,601.64
  4. Step 4: Simplify right side
    191,868.45x = 22,914,352,368.02
  5. Step 5: Solve for x
    x = 22,914,352,368.02/191,868.45
  6. Step 6: Final answer
    x = 119,427.41

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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.