Home / 153,812.12-212,262.73-89,296.43

Finding the Fourth Proportional to 153,812.12, 212,262.73 and 89,296.43

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Solution

The fourth proportional to 153,812.12, 212,262.73 and 89,296.43 is: 123,230.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,812.12 : 212,262.73 = 89,296.43 : x
  2. Step 2: Convert to fraction form
    153,812.12/212,262.73 = 89,296.43/x
  3. Step 3: Cross multiply
    153,812.12x = 212,262.73 × 89,296.43
  4. Step 4: Simplify right side
    153,812.12x = 18,954,302,726.50
  5. Step 5: Solve for x
    x = 18,954,302,726.50/153,812.12
  6. Step 6: Final answer
    x = 123,230.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.