Home / 101,511.09-152,166.20-48,109.21

Finding the Fourth Proportional to 101,511.09, 152,166.20 and 48,109.21

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Solution

The fourth proportional to 101,511.09, 152,166.20 and 48,109.21 is: 72,116.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,511.09 : 152,166.20 = 48,109.21 : x
  2. Step 2: Convert to fraction form
    101,511.09/152,166.20 = 48,109.21/x
  3. Step 3: Cross multiply
    101,511.09x = 152,166.20 × 48,109.21
  4. Step 4: Simplify right side
    101,511.09x = 7,320,595,430.16
  5. Step 5: Solve for x
    x = 7,320,595,430.16/101,511.09
  6. Step 6: Final answer
    x = 72,116.21

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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.