Home / 136,647.90-188,574.42-76,222.46

Finding the Fourth Proportional to 136,647.90, 188,574.42 and 76,222.46

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Solution

The fourth proportional to 136,647.90, 188,574.42 and 76,222.46 is: 105,187.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,647.90 : 188,574.42 = 76,222.46 : x
  2. Step 2: Convert to fraction form
    136,647.90/188,574.42 = 76,222.46/x
  3. Step 3: Cross multiply
    136,647.90x = 188,574.42 × 76,222.46
  4. Step 4: Simplify right side
    136,647.90x = 14,373,605,242.60
  5. Step 5: Solve for x
    x = 14,373,605,242.60/136,647.90
  6. Step 6: Final answer
    x = 105,187.17

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1.5x scale

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.