Home / 153,313.20-229,969.80-74,581.20

Finding the Fourth Proportional to 153,313.20, 229,969.80 and 74,581.20

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Solution

The fourth proportional to 153,313.20, 229,969.80 and 74,581.20 is: 111,871.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,313.20 : 229,969.80 = 74,581.20 : x
  2. Step 2: Convert to fraction form
    153,313.20/229,969.80 = 74,581.20/x
  3. Step 3: Cross multiply
    153,313.20x = 229,969.80 × 74,581.20
  4. Step 4: Simplify right side
    153,313.20x = 17,151,423,647.76
  5. Step 5: Solve for x
    x = 17,151,423,647.76/153,313.20
  6. Step 6: Final answer
    x = 111,871.80

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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.