Home / 147,558.34-203,561.37-87,087.79

Finding the Fourth Proportional to 147,558.34, 203,561.37 and 87,087.79

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Solution

The fourth proportional to 147,558.34, 203,561.37 and 87,087.79 is: 120,140.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,558.34 : 203,561.37 = 87,087.79 : x
  2. Step 2: Convert to fraction form
    147,558.34/203,561.37 = 87,087.79/x
  3. Step 3: Cross multiply
    147,558.34x = 203,561.37 × 87,087.79
  4. Step 4: Simplify right side
    147,558.34x = 17,727,710,097.12
  5. Step 5: Solve for x
    x = 17,727,710,097.12/147,558.34
  6. Step 6: Final answer
    x = 120,140.35

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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.