Home / 210,521.89-290,520.27-113,725.77

Finding the Fourth Proportional to 210,521.89, 290,520.27 and 113,725.77

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Solution

The fourth proportional to 210,521.89, 290,520.27 and 113,725.77 is: 156,941.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,521.89 : 290,520.27 = 113,725.77 : x
  2. Step 2: Convert to fraction form
    210,521.89/290,520.27 = 113,725.77/x
  3. Step 3: Cross multiply
    210,521.89x = 290,520.27 × 113,725.77
  4. Step 4: Simplify right side
    210,521.89x = 33,039,641,951.08
  5. Step 5: Solve for x
    x = 33,039,641,951.08/210,521.89
  6. Step 6: Final answer
    x = 156,941.60

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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.