Home / 131,846.78-181,948.46-71,417.28

Finding the Fourth Proportional to 131,846.78, 181,948.46 and 71,417.28

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Solution

The fourth proportional to 131,846.78, 181,948.46 and 71,417.28 is: 98,555.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,846.78 : 181,948.46 = 71,417.28 : x
  2. Step 2: Convert to fraction form
    131,846.78/181,948.46 = 71,417.28/x
  3. Step 3: Cross multiply
    131,846.78x = 181,948.46 × 71,417.28
  4. Step 4: Simplify right side
    131,846.78x = 12,994,264,113.39
  5. Step 5: Solve for x
    x = 12,994,264,113.39/131,846.78
  6. Step 6: Final answer
    x = 98,555.80

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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.