Home / 145,348.95-200,557.23-80,816.39

Finding the Fourth Proportional to 145,348.95, 200,557.23 and 80,816.39

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Solution

The fourth proportional to 145,348.95, 200,557.23 and 80,816.39 is: 111,513.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,348.95 : 200,557.23 = 80,816.39 : x
  2. Step 2: Convert to fraction form
    145,348.95/200,557.23 = 80,816.39/x
  3. Step 3: Cross multiply
    145,348.95x = 200,557.23 × 80,816.39
  4. Step 4: Simplify right side
    145,348.95x = 16,208,311,317.00
  5. Step 5: Solve for x
    x = 16,208,311,317.00/145,348.95
  6. Step 6: Final answer
    x = 111,513.10

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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.