Home / 147,032.11-203,018.60-112,986.90

Finding the Fourth Proportional to 147,032.11, 203,018.60 and 112,986.90

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Solution

The fourth proportional to 147,032.11, 203,018.60 and 112,986.90 is: 156,009.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,032.11 : 203,018.60 = 112,986.90 : x
  2. Step 2: Convert to fraction form
    147,032.11/203,018.60 = 112,986.90/x
  3. Step 3: Cross multiply
    147,032.11x = 203,018.60 × 112,986.90
  4. Step 4: Simplify right side
    147,032.11x = 22,938,442,538.81
  5. Step 5: Solve for x
    x = 22,938,442,538.81/147,032.11
  6. Step 6: Final answer
    x = 156,009.75

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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.