Home / 136,860.90-205,212.96-42,066.42

Finding the Fourth Proportional to 136,860.90, 205,212.96 and 42,066.42

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Solution

The fourth proportional to 136,860.90, 205,212.96 and 42,066.42 is: 63,075.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,860.90 : 205,212.96 = 42,066.42 : x
  2. Step 2: Convert to fraction form
    136,860.90/205,212.96 = 42,066.42/x
  3. Step 3: Cross multiply
    136,860.90x = 205,212.96 × 42,066.42
  4. Step 4: Simplify right side
    136,860.90x = 8,632,574,564.80
  5. Step 5: Solve for x
    x = 8,632,574,564.80/136,860.90
  6. Step 6: Final answer
    x = 63,075.54

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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.