Home / 210,005.03-289,812.46-129,485.77

Finding the Fourth Proportional to 210,005.03, 289,812.46 and 129,485.77

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Solution

The fourth proportional to 210,005.03, 289,812.46 and 129,485.77 is: 178,693.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,005.03 : 289,812.46 = 129,485.77 : x
  2. Step 2: Convert to fraction form
    210,005.03/289,812.46 = 129,485.77/x
  3. Step 3: Cross multiply
    210,005.03x = 289,812.46 × 129,485.77
  4. Step 4: Simplify right side
    210,005.03x = 37,526,589,538.69
  5. Step 5: Solve for x
    x = 37,526,589,538.69/210,005.03
  6. Step 6: Final answer
    x = 178,693.77

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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.