Home / 145,936.20-218,904.30-83,555.40

Finding the Fourth Proportional to 145,936.20, 218,904.30 and 83,555.40

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Solution

The fourth proportional to 145,936.20, 218,904.30 and 83,555.40 is: 125,333.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,936.20 : 218,904.30 = 83,555.40 : x
  2. Step 2: Convert to fraction form
    145,936.20/218,904.30 = 83,555.40/x
  3. Step 3: Cross multiply
    145,936.20x = 218,904.30 × 83,555.40
  4. Step 4: Simplify right side
    145,936.20x = 18,290,636,348.22
  5. Step 5: Solve for x
    x = 18,290,636,348.22/145,936.20
  6. Step 6: Final answer
    x = 125,333.10

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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.