Home / 239,430.40-358,857.60-99,116.80

Finding the Fourth Proportional to 239,430.40, 358,857.60 and 99,116.80

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Solution

The fourth proportional to 239,430.40, 358,857.60 and 99,116.80 is: 148,555.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,430.40 : 358,857.60 = 99,116.80 : x
  2. Step 2: Convert to fraction form
    239,430.40/358,857.60 = 99,116.80/x
  3. Step 3: Cross multiply
    239,430.40x = 358,857.60 × 99,116.80
  4. Step 4: Simplify right side
    239,430.40x = 35,568,816,967.68
  5. Step 5: Solve for x
    x = 35,568,816,967.68/239,430.40
  6. Step 6: Final answer
    x = 148,555.98

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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.