Home / 93,247.60-139,871.40-78,485.35

Finding the Fourth Proportional to 93,247.60, 139,871.40 and 78,485.35

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Solution

The fourth proportional to 93,247.60, 139,871.40 and 78,485.35 is: 117,728.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,247.60 : 139,871.40 = 78,485.35 : x
  2. Step 2: Convert to fraction form
    93,247.60/139,871.40 = 78,485.35/x
  3. Step 3: Cross multiply
    93,247.60x = 139,871.40 × 78,485.35
  4. Step 4: Simplify right side
    93,247.60x = 10,977,855,783.99
  5. Step 5: Solve for x
    x = 10,977,855,783.99/93,247.60
  6. Step 6: Final answer
    x = 117,728.03

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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.