Home / 146,008.20-218,861.10-79,307.40

Finding the Fourth Proportional to 146,008.20, 218,861.10 and 79,307.40

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Solution

The fourth proportional to 146,008.20, 218,861.10 and 79,307.40 is: 118,878.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,008.20 : 218,861.10 = 79,307.40 : x
  2. Step 2: Convert to fraction form
    146,008.20/218,861.10 = 79,307.40/x
  3. Step 3: Cross multiply
    146,008.20x = 218,861.10 × 79,307.40
  4. Step 4: Simplify right side
    146,008.20x = 17,357,304,802.14
  5. Step 5: Solve for x
    x = 17,357,304,802.14/146,008.20
  6. Step 6: Final answer
    x = 118,878.97

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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.