Home / 185,823.44-256,436.80-100,938.72

Finding the Fourth Proportional to 185,823.44, 256,436.80 and 100,938.72

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Solution

The fourth proportional to 185,823.44, 256,436.80 and 100,938.72 is: 139,295.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,823.44 : 256,436.80 = 100,938.72 : x
  2. Step 2: Convert to fraction form
    185,823.44/256,436.80 = 100,938.72/x
  3. Step 3: Cross multiply
    185,823.44x = 256,436.80 × 100,938.72
  4. Step 4: Simplify right side
    185,823.44x = 25,884,402,352.90
  5. Step 5: Solve for x
    x = 25,884,402,352.90/185,823.44
  6. Step 6: Final answer
    x = 139,295.68

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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.