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Finding the Fourth Proportional to 185,607.84, 256,138.82 and 100,724.91

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Solution

The fourth proportional to 185,607.84, 256,138.82 and 100,724.91 is: 139,000.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,607.84 : 256,138.82 = 100,724.91 : x
  2. Step 2: Convert to fraction form
    185,607.84/256,138.82 = 100,724.91/x
  3. Step 3: Cross multiply
    185,607.84x = 256,138.82 × 100,724.91
  4. Step 4: Simplify right side
    185,607.84x = 25,799,559,088.38
  5. Step 5: Solve for x
    x = 25,799,559,088.38/185,607.84
  6. Step 6: Final answer
    x = 139,000.37

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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.