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Finding the Fourth Proportional to 116,000.40, 174,000.60 and 79,136.40

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Solution

The fourth proportional to 116,000.40, 174,000.60 and 79,136.40 is: 118,704.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,000.40 : 174,000.60 = 79,136.40 : x
  2. Step 2: Convert to fraction form
    116,000.40/174,000.60 = 79,136.40/x
  3. Step 3: Cross multiply
    116,000.40x = 174,000.60 × 79,136.40
  4. Step 4: Simplify right side
    116,000.40x = 13,769,781,081.84
  5. Step 5: Solve for x
    x = 13,769,781,081.84/116,000.40
  6. Step 6: Final answer
    x = 118,704.60

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1.5x scale

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.