Home / 134,876.10-186,114.60-77,503.80

Finding the Fourth Proportional to 134,876.10, 186,114.60 and 77,503.80

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Solution

The fourth proportional to 134,876.10, 186,114.60 and 77,503.80 is: 106,946.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,876.10 : 186,114.60 = 77,503.80 : x
  2. Step 2: Convert to fraction form
    134,876.10/186,114.60 = 77,503.80/x
  3. Step 3: Cross multiply
    134,876.10x = 186,114.60 × 77,503.80
  4. Step 4: Simplify right side
    134,876.10x = 14,424,588,735.48
  5. Step 5: Solve for x
    x = 14,424,588,735.48/134,876.10
  6. Step 6: Final answer
    x = 106,946.96

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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.