Home / 131,415.43-181,353.37-70,986.08

Finding the Fourth Proportional to 131,415.43, 181,353.37 and 70,986.08

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Solution

The fourth proportional to 131,415.43, 181,353.37 and 70,986.08 is: 97,960.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,415.43 : 181,353.37 = 70,986.08 : x
  2. Step 2: Convert to fraction form
    131,415.43/181,353.37 = 70,986.08/x
  3. Step 3: Cross multiply
    131,415.43x = 181,353.37 × 70,986.08
  4. Step 4: Simplify right side
    131,415.43x = 12,873,563,746.86
  5. Step 5: Solve for x
    x = 12,873,563,746.86/131,415.43
  6. Step 6: Final answer
    x = 97,960.82

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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.