Home / 157,977.04-218,047.49-90,034.31

Finding the Fourth Proportional to 157,977.04, 218,047.49 and 90,034.31

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Solution

The fourth proportional to 157,977.04, 218,047.49 and 90,034.31 is: 124,269.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,977.04 : 218,047.49 = 90,034.31 : x
  2. Step 2: Convert to fraction form
    157,977.04/218,047.49 = 90,034.31/x
  3. Step 3: Cross multiply
    157,977.04x = 218,047.49 × 90,034.31
  4. Step 4: Simplify right side
    157,977.04x = 19,631,753,768.97
  5. Step 5: Solve for x
    x = 19,631,753,768.97/157,977.04
  6. Step 6: Final answer
    x = 124,269.67

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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.