Home / 185,666.49-256,219.54-100,783.55

Finding the Fourth Proportional to 185,666.49, 256,219.54 and 100,783.55

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Solution

The fourth proportional to 185,666.49, 256,219.54 and 100,783.55 is: 139,081.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,666.49 : 256,219.54 = 100,783.55 : x
  2. Step 2: Convert to fraction form
    185,666.49/256,219.54 = 100,783.55/x
  3. Step 3: Cross multiply
    185,666.49x = 256,219.54 × 100,783.55
  4. Step 4: Simplify right side
    185,666.49x = 25,822,715,209.16
  5. Step 5: Solve for x
    x = 25,822,715,209.16/185,666.49
  6. Step 6: Final answer
    x = 139,081.18

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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.