Home / 147,291.48-203,192.64-99,561.60

Finding the Fourth Proportional to 147,291.48, 203,192.64 and 99,561.60

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Solution

The fourth proportional to 147,291.48, 203,192.64 and 99,561.60 is: 137,347.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,291.48 : 203,192.64 = 99,561.60 : x
  2. Step 2: Convert to fraction form
    147,291.48/203,192.64 = 99,561.60/x
  3. Step 3: Cross multiply
    147,291.48x = 203,192.64 × 99,561.60
  4. Step 4: Simplify right side
    147,291.48x = 20,230,184,346.62
  5. Step 5: Solve for x
    x = 20,230,184,346.62/147,291.48
  6. Step 6: Final answer
    x = 137,347.96

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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.