Home / 185,799.89-256,405.20-100,916.98

Finding the Fourth Proportional to 185,799.89, 256,405.20 and 100,916.98

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Solution

The fourth proportional to 185,799.89, 256,405.20 and 100,916.98 is: 139,266.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,799.89 : 256,405.20 = 100,916.98 : x
  2. Step 2: Convert to fraction form
    185,799.89/256,405.20 = 100,916.98/x
  3. Step 3: Cross multiply
    185,799.89x = 256,405.20 × 100,916.98
  4. Step 4: Simplify right side
    185,799.89x = 25,875,638,440.30
  5. Step 5: Solve for x
    x = 25,875,638,440.30/185,799.89
  6. Step 6: Final answer
    x = 139,266.17

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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.