Home / 147,492.19-203,615.78-99,347.21

Finding the Fourth Proportional to 147,492.19, 203,615.78 and 99,347.21

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Solution

The fourth proportional to 147,492.19, 203,615.78 and 99,347.21 is: 137,150.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,492.19 : 203,615.78 = 99,347.21 : x
  2. Step 2: Convert to fraction form
    147,492.19/203,615.78 = 99,347.21/x
  3. Step 3: Cross multiply
    147,492.19x = 203,615.78 × 99,347.21
  4. Step 4: Simplify right side
    147,492.19x = 20,228,658,140.16
  5. Step 5: Solve for x
    x = 20,228,658,140.16/147,492.19
  6. Step 6: Final answer
    x = 137,150.71

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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.