Home / 131,615.19-181,628.28-71,185.77

Finding the Fourth Proportional to 131,615.19, 181,628.28 and 71,185.77

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Solution

The fourth proportional to 131,615.19, 181,628.28 and 71,185.77 is: 98,235.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,615.19 : 181,628.28 = 71,185.77 : x
  2. Step 2: Convert to fraction form
    131,615.19/181,628.28 = 71,185.77/x
  3. Step 3: Cross multiply
    131,615.19x = 181,628.28 × 71,185.77
  4. Step 4: Simplify right side
    131,615.19x = 12,929,348,965.58
  5. Step 5: Solve for x
    x = 12,929,348,965.58/131,615.19
  6. Step 6: Final answer
    x = 98,235.99

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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.