Home / 210,124.29-290,023.83-129,617.85

Finding the Fourth Proportional to 210,124.29, 290,023.83 and 129,617.85

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Solution

The fourth proportional to 210,124.29, 290,023.83 and 129,617.85 is: 178,904.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,124.29 : 290,023.83 = 129,617.85 : x
  2. Step 2: Convert to fraction form
    210,124.29/290,023.83 = 129,617.85/x
  3. Step 3: Cross multiply
    210,124.29x = 290,023.83 × 129,617.85
  4. Step 4: Simplify right side
    210,124.29x = 37,592,265,293.37
  5. Step 5: Solve for x
    x = 37,592,265,293.37/210,124.29
  6. Step 6: Final answer
    x = 178,904.90

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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.