Home / 112,860.14-169,345.68-45,389.48

Finding the Fourth Proportional to 112,860.14, 169,345.68 and 45,389.48

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Solution

The fourth proportional to 112,860.14, 169,345.68 and 45,389.48 is: 68,106.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,860.14 : 169,345.68 = 45,389.48 : x
  2. Step 2: Convert to fraction form
    112,860.14/169,345.68 = 45,389.48/x
  3. Step 3: Cross multiply
    112,860.14x = 169,345.68 × 45,389.48
  4. Step 4: Simplify right side
    112,860.14x = 7,686,511,281.77
  5. Step 5: Solve for x
    x = 7,686,511,281.77/112,860.14
  6. Step 6: Final answer
    x = 68,106.52

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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.