Home / 122,790.48-169,451.68-69,075.12

Finding the Fourth Proportional to 122,790.48, 169,451.68 and 69,075.12

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Solution

The fourth proportional to 122,790.48, 169,451.68 and 69,075.12 is: 95,324.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,790.48 : 169,451.68 = 69,075.12 : x
  2. Step 2: Convert to fraction form
    122,790.48/169,451.68 = 69,075.12/x
  3. Step 3: Cross multiply
    122,790.48x = 169,451.68 × 69,075.12
  4. Step 4: Simplify right side
    122,790.48x = 11,704,895,130.20
  5. Step 5: Solve for x
    x = 11,704,895,130.20/122,790.48
  6. Step 6: Final answer
    x = 95,324.13

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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.