Home / 124,210.40-186,289.47-39,978.09

Finding the Fourth Proportional to 124,210.40, 186,289.47 and 39,978.09

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Solution

The fourth proportional to 124,210.40, 186,289.47 and 39,978.09 is: 59,958.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,210.40 : 186,289.47 = 39,978.09 : x
  2. Step 2: Convert to fraction form
    124,210.40/186,289.47 = 39,978.09/x
  3. Step 3: Cross multiply
    124,210.40x = 186,289.47 × 39,978.09
  4. Step 4: Simplify right side
    124,210.40x = 7,447,497,197.71
  5. Step 5: Solve for x
    x = 7,447,497,197.71/124,210.40
  6. Step 6: Final answer
    x = 59,958.73

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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.