Home / 93,246.60-139,705.20-90,163.20

Finding the Fourth Proportional to 93,246.60, 139,705.20 and 90,163.20

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Solution

The fourth proportional to 93,246.60, 139,705.20 and 90,163.20 is: 135,085.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,246.60 : 139,705.20 = 90,163.20 : x
  2. Step 2: Convert to fraction form
    93,246.60/139,705.20 = 90,163.20/x
  3. Step 3: Cross multiply
    93,246.60x = 139,705.20 × 90,163.20
  4. Step 4: Simplify right side
    93,246.60x = 12,596,267,888.64
  5. Step 5: Solve for x
    x = 12,596,267,888.64/93,246.60
  6. Step 6: Final answer
    x = 135,085.55

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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.