Home / 105,075.93-145,001.88-57,329.25

Finding the Fourth Proportional to 105,075.93, 145,001.88 and 57,329.25

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Solution

The fourth proportional to 105,075.93, 145,001.88 and 57,329.25 is: 79,112.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,075.93 : 145,001.88 = 57,329.25 : x
  2. Step 2: Convert to fraction form
    105,075.93/145,001.88 = 57,329.25/x
  3. Step 3: Cross multiply
    105,075.93x = 145,001.88 × 57,329.25
  4. Step 4: Simplify right side
    105,075.93x = 8,312,849,028.99
  5. Step 5: Solve for x
    x = 8,312,849,028.99/105,075.93
  6. Step 6: Final answer
    x = 79,112.78

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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.