Home / 143,353.04-197,832.26-78,827.16

Finding the Fourth Proportional to 143,353.04, 197,832.26 and 78,827.16

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Solution

The fourth proportional to 143,353.04, 197,832.26 and 78,827.16 is: 108,784.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,353.04 : 197,832.26 = 78,827.16 : x
  2. Step 2: Convert to fraction form
    143,353.04/197,832.26 = 78,827.16/x
  3. Step 3: Cross multiply
    143,353.04x = 197,832.26 × 78,827.16
  4. Step 4: Simplify right side
    143,353.04x = 15,594,554,818.05
  5. Step 5: Solve for x
    x = 15,594,554,818.05/143,353.04
  6. Step 6: Final answer
    x = 108,784.27

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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.