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Finding the Fourth Proportional to 172,607.04, 238,140.60 and 100,936.28

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Solution

The fourth proportional to 172,607.04, 238,140.60 and 100,936.28 is: 139,258.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,607.04 : 238,140.60 = 100,936.28 : x
  2. Step 2: Convert to fraction form
    172,607.04/238,140.60 = 100,936.28/x
  3. Step 3: Cross multiply
    172,607.04x = 238,140.60 × 100,936.28
  4. Step 4: Simplify right side
    172,607.04x = 24,037,026,280.97
  5. Step 5: Solve for x
    x = 24,037,026,280.97/172,607.04
  6. Step 6: Final answer
    x = 139,258.67

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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.