Home / 100,821.04-151,254.16-30,705.84

Finding the Fourth Proportional to 100,821.04, 151,254.16 and 30,705.84

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Solution

The fourth proportional to 100,821.04, 151,254.16 and 30,705.84 is: 46,065.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,821.04 : 151,254.16 = 30,705.84 : x
  2. Step 2: Convert to fraction form
    100,821.04/151,254.16 = 30,705.84/x
  3. Step 3: Cross multiply
    100,821.04x = 151,254.16 × 30,705.84
  4. Step 4: Simplify right side
    100,821.04x = 4,644,386,036.29
  5. Step 5: Solve for x
    x = 4,644,386,036.29/100,821.04
  6. Step 6: Final answer
    x = 46,065.64

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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.