Home / 150,511.48-207,550.84-105,172.92

Finding the Fourth Proportional to 150,511.48, 207,550.84 and 105,172.92

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Solution

The fourth proportional to 150,511.48, 207,550.84 and 105,172.92 is: 145,030.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,511.48 : 207,550.84 = 105,172.92 : x
  2. Step 2: Convert to fraction form
    150,511.48/207,550.84 = 105,172.92/x
  3. Step 3: Cross multiply
    150,511.48x = 207,550.84 × 105,172.92
  4. Step 4: Simplify right side
    150,511.48x = 21,828,727,891.25
  5. Step 5: Solve for x
    x = 21,828,727,891.25/150,511.48
  6. Step 6: Final answer
    x = 145,030.32

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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.