Home / 185,681.38-256,240.05-100,798.45

Finding the Fourth Proportional to 185,681.38, 256,240.05 and 100,798.45

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Solution

The fourth proportional to 185,681.38, 256,240.05 and 100,798.45 is: 139,101.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,681.38 : 256,240.05 = 100,798.45 : x
  2. Step 2: Convert to fraction form
    185,681.38/256,240.05 = 100,798.45/x
  3. Step 3: Cross multiply
    185,681.38x = 256,240.05 × 100,798.45
  4. Step 4: Simplify right side
    185,681.38x = 25,828,599,867.92
  5. Step 5: Solve for x
    x = 25,828,599,867.92/185,681.38
  6. Step 6: Final answer
    x = 139,101.72

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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.