Home / 123,999.03-170,814.96-89,907.35

Finding the Fourth Proportional to 123,999.03, 170,814.96 and 89,907.35

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Solution

The fourth proportional to 123,999.03, 170,814.96 and 89,907.35 is: 123,851.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,999.03 : 170,814.96 = 89,907.35 : x
  2. Step 2: Convert to fraction form
    123,999.03/170,814.96 = 89,907.35/x
  3. Step 3: Cross multiply
    123,999.03x = 170,814.96 × 89,907.35
  4. Step 4: Simplify right side
    123,999.03x = 15,357,519,539.88
  5. Step 5: Solve for x
    x = 15,357,519,539.88/123,999.03
  6. Step 6: Final answer
    x = 123,851.93

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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.