Home / 93,390.23-139,356.93-83,325.78

Finding the Fourth Proportional to 93,390.23, 139,356.93 and 83,325.78

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Solution

The fourth proportional to 93,390.23, 139,356.93 and 83,325.78 is: 124,338.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,390.23 : 139,356.93 = 83,325.78 : x
  2. Step 2: Convert to fraction form
    93,390.23/139,356.93 = 83,325.78/x
  3. Step 3: Cross multiply
    93,390.23x = 139,356.93 × 83,325.78
  4. Step 4: Simplify right side
    93,390.23x = 11,612,024,890.66
  5. Step 5: Solve for x
    x = 11,612,024,890.66/93,390.23
  6. Step 6: Final answer
    x = 124,338.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.