Home / 93,831.12-140,357.56-71,475.28

Finding the Fourth Proportional to 93,831.12, 140,357.56 and 71,475.28

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Solution

The fourth proportional to 93,831.12, 140,357.56 and 71,475.28 is: 106,916.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,831.12 : 140,357.56 = 71,475.28 : x
  2. Step 2: Convert to fraction form
    93,831.12/140,357.56 = 71,475.28/x
  3. Step 3: Cross multiply
    93,831.12x = 140,357.56 × 71,475.28
  4. Step 4: Simplify right side
    93,831.12x = 10,032,095,901.12
  5. Step 5: Solve for x
    x = 10,032,095,901.12/93,831.12
  6. Step 6: Final answer
    x = 106,916.51

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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.