Home / 124,212.40-186,292.47-39,980.09

Finding the Fourth Proportional to 124,212.40, 186,292.47 and 39,980.09

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Solution

The fourth proportional to 124,212.40, 186,292.47 and 39,980.09 is: 59,961.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,212.40 : 186,292.47 = 39,980.09 : x
  2. Step 2: Convert to fraction form
    124,212.40/186,292.47 = 39,980.09/x
  3. Step 3: Cross multiply
    124,212.40x = 186,292.47 × 39,980.09
  4. Step 4: Simplify right side
    124,212.40x = 7,447,989,716.92
  5. Step 5: Solve for x
    x = 7,447,989,716.92/124,212.40
  6. Step 6: Final answer
    x = 59,961.72

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1.5x scale

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.