Home / 146,009.20-218,862.60-79,308.40

Finding the Fourth Proportional to 146,009.20, 218,862.60 and 79,308.40

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Solution

The fourth proportional to 146,009.20, 218,862.60 and 79,308.40 is: 118,880.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,009.20 : 218,862.60 = 79,308.40 : x
  2. Step 2: Convert to fraction form
    146,009.20/218,862.60 = 79,308.40/x
  3. Step 3: Cross multiply
    146,009.20x = 218,862.60 × 79,308.40
  4. Step 4: Simplify right side
    146,009.20x = 17,357,642,625.84
  5. Step 5: Solve for x
    x = 17,357,642,625.84/146,009.20
  6. Step 6: Final answer
    x = 118,880.47

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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.