Home / 131,705.10-181,733.47-79,995.28

Finding the Fourth Proportional to 131,705.10, 181,733.47 and 79,995.28

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Solution

The fourth proportional to 131,705.10, 181,733.47 and 79,995.28 is: 110,381.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,705.10 : 181,733.47 = 79,995.28 : x
  2. Step 2: Convert to fraction form
    131,705.10/181,733.47 = 79,995.28/x
  3. Step 3: Cross multiply
    131,705.10x = 181,733.47 × 79,995.28
  4. Step 4: Simplify right side
    131,705.10x = 14,537,819,618.03
  5. Step 5: Solve for x
    x = 14,537,819,618.03/131,705.10
  6. Step 6: Final answer
    x = 110,381.60

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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.