Home / 186,317.09-279,480.22-67,988.40

Finding the Fourth Proportional to 186,317.09, 279,480.22 and 67,988.40

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Solution

The fourth proportional to 186,317.09, 279,480.22 and 67,988.40 is: 101,984.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,317.09 : 279,480.22 = 67,988.40 : x
  2. Step 2: Convert to fraction form
    186,317.09/279,480.22 = 67,988.40/x
  3. Step 3: Cross multiply
    186,317.09x = 279,480.22 × 67,988.40
  4. Step 4: Simplify right side
    186,317.09x = 19,001,412,989.45
  5. Step 5: Solve for x
    x = 19,001,412,989.45/186,317.09
  6. Step 6: Final answer
    x = 101,984.27

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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.