Home / 131,616.70-181,630.44-71,187.40

Finding the Fourth Proportional to 131,616.70, 181,630.44 and 71,187.40

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Solution

The fourth proportional to 131,616.70, 181,630.44 and 71,187.40 is: 98,238.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,616.70 : 181,630.44 = 71,187.40 : x
  2. Step 2: Convert to fraction form
    131,616.70/181,630.44 = 71,187.40/x
  3. Step 3: Cross multiply
    131,616.70x = 181,630.44 × 71,187.40
  4. Step 4: Simplify right side
    131,616.70x = 12,929,798,784.46
  5. Step 5: Solve for x
    x = 12,929,798,784.46/131,616.70
  6. Step 6: Final answer
    x = 98,238.28

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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.