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Finding the Fourth Proportional to 93,099.83, 128,233.02 and 71,548.34

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Solution

The fourth proportional to 93,099.83, 128,233.02 and 71,548.34 is: 98,548.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,099.83 : 128,233.02 = 71,548.34 : x
  2. Step 2: Convert to fraction form
    93,099.83/128,233.02 = 71,548.34/x
  3. Step 3: Cross multiply
    93,099.83x = 128,233.02 × 71,548.34
  4. Step 4: Simplify right side
    93,099.83x = 9,174,859,714.19
  5. Step 5: Solve for x
    x = 9,174,859,714.19/93,099.83
  6. Step 6: Final answer
    x = 98,548.62

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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.