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Finding the Fourth Proportional to 146,008.95, 201,492.65 and 78,940.95

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Solution

The fourth proportional to 146,008.95, 201,492.65 and 78,940.95 is: 108,938.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,008.95 : 201,492.65 = 78,940.95 : x
  2. Step 2: Convert to fraction form
    146,008.95/201,492.65 = 78,940.95/x
  3. Step 3: Cross multiply
    146,008.95x = 201,492.65 × 78,940.95
  4. Step 4: Simplify right side
    146,008.95x = 15,906,021,209.02
  5. Step 5: Solve for x
    x = 15,906,021,209.02/146,008.95
  6. Step 6: Final answer
    x = 108,938.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.