Home / 143,370.16-197,853.12-78,842.08

Finding the Fourth Proportional to 143,370.16, 197,853.12 and 78,842.08

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Solution

The fourth proportional to 143,370.16, 197,853.12 and 78,842.08 is: 108,803.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,370.16 : 197,853.12 = 78,842.08 : x
  2. Step 2: Convert to fraction form
    143,370.16/197,853.12 = 78,842.08/x
  3. Step 3: Cross multiply
    143,370.16x = 197,853.12 × 78,842.08
  4. Step 4: Simplify right side
    143,370.16x = 15,599,151,515.29
  5. Step 5: Solve for x
    x = 15,599,151,515.29/143,370.16
  6. Step 6: Final answer
    x = 108,803.33

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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.