Home / 93,730.28-140,932.62-86,424.04

Finding the Fourth Proportional to 93,730.28, 140,932.62 and 86,424.04

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Solution

The fourth proportional to 93,730.28, 140,932.62 and 86,424.04 is: 129,946.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,730.28 : 140,932.62 = 86,424.04 : x
  2. Step 2: Convert to fraction form
    93,730.28/140,932.62 = 86,424.04/x
  3. Step 3: Cross multiply
    93,730.28x = 140,932.62 × 86,424.04
  4. Step 4: Simplify right side
    93,730.28x = 12,179,966,388.18
  5. Step 5: Solve for x
    x = 12,179,966,388.18/93,730.28
  6. Step 6: Final answer
    x = 129,946.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.