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Finding the Fourth Proportional to 144,696.08, 199,519.80 and 90,916.40

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Solution

The fourth proportional to 144,696.08, 199,519.80 and 90,916.40 is: 125,363.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,696.08 : 199,519.80 = 90,916.40 : x
  2. Step 2: Convert to fraction form
    144,696.08/199,519.80 = 90,916.40/x
  3. Step 3: Cross multiply
    144,696.08x = 199,519.80 × 90,916.40
  4. Step 4: Simplify right side
    144,696.08x = 18,139,621,944.72
  5. Step 5: Solve for x
    x = 18,139,621,944.72/144,696.08
  6. Step 6: Final answer
    x = 125,363.60

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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.