Home / 123,297.42-170,153.16-68,106.62

Finding the Fourth Proportional to 123,297.42, 170,153.16 and 68,106.62

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Solution

The fourth proportional to 123,297.42, 170,153.16 and 68,106.62 is: 93,988.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,297.42 : 170,153.16 = 68,106.62 : x
  2. Step 2: Convert to fraction form
    123,297.42/170,153.16 = 68,106.62/x
  3. Step 3: Cross multiply
    123,297.42x = 170,153.16 × 68,106.62
  4. Step 4: Simplify right side
    123,297.42x = 11,588,556,779.90
  5. Step 5: Solve for x
    x = 11,588,556,779.90/123,297.42
  6. Step 6: Final answer
    x = 93,988.64

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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.