Home / 172,075.93-258,278.08-105,645.81

Finding the Fourth Proportional to 172,075.93, 258,278.08 and 105,645.81

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Solution

The fourth proportional to 172,075.93, 258,278.08 and 105,645.81 is: 158,569.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,075.93 : 258,278.08 = 105,645.81 : x
  2. Step 2: Convert to fraction form
    172,075.93/258,278.08 = 105,645.81/x
  3. Step 3: Cross multiply
    172,075.93x = 258,278.08 × 105,645.81
  4. Step 4: Simplify right side
    172,075.93x = 27,285,996,966.84
  5. Step 5: Solve for x
    x = 27,285,996,966.84/172,075.93
  6. Step 6: Final answer
    x = 158,569.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.