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Finding the Fourth Proportional to 172,852.72, 238,528.20 and 97,406.08

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Solution

The fourth proportional to 172,852.72, 238,528.20 and 97,406.08 is: 134,415.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,852.72 : 238,528.20 = 97,406.08 : x
  2. Step 2: Convert to fraction form
    172,852.72/238,528.20 = 97,406.08/x
  3. Step 3: Cross multiply
    172,852.72x = 238,528.20 × 97,406.08
  4. Step 4: Simplify right side
    172,852.72x = 23,234,096,931.46
  5. Step 5: Solve for x
    x = 23,234,096,931.46/172,852.72
  6. Step 6: Final answer
    x = 134,415.57

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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.