Home / 123,647.04-170,644.25-77,714.15

Finding the Fourth Proportional to 123,647.04, 170,644.25 and 77,714.15

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Solution

The fourth proportional to 123,647.04, 170,644.25 and 77,714.15 is: 107,252.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,647.04 : 170,644.25 = 77,714.15 : x
  2. Step 2: Convert to fraction form
    123,647.04/170,644.25 = 77,714.15/x
  3. Step 3: Cross multiply
    123,647.04x = 170,644.25 × 77,714.15
  4. Step 4: Simplify right side
    123,647.04x = 13,261,473,462.03
  5. Step 5: Solve for x
    x = 13,261,473,462.03/123,647.04
  6. Step 6: Final answer
    x = 107,252.66

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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.