Home / 142,087.86-213,075.99-53,292.96

Finding the Fourth Proportional to 142,087.86, 213,075.99 and 53,292.96

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Solution

The fourth proportional to 142,087.86, 213,075.99 and 53,292.96 is: 79,918.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,087.86 : 213,075.99 = 53,292.96 : x
  2. Step 2: Convert to fraction form
    142,087.86/213,075.99 = 53,292.96/x
  3. Step 3: Cross multiply
    142,087.86x = 213,075.99 × 53,292.96
  4. Step 4: Simplify right side
    142,087.86x = 11,355,450,212.03
  5. Step 5: Solve for x
    x = 11,355,450,212.03/142,087.86
  6. Step 6: Final answer
    x = 79,918.51

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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.