Home / 132,155.90-198,254.50-43,389.21

Finding the Fourth Proportional to 132,155.90, 198,254.50 and 43,389.21

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Solution

The fourth proportional to 132,155.90, 198,254.50 and 43,389.21 is: 65,090.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,155.90 : 198,254.50 = 43,389.21 : x
  2. Step 2: Convert to fraction form
    132,155.90/198,254.50 = 43,389.21/x
  3. Step 3: Cross multiply
    132,155.90x = 198,254.50 × 43,389.21
  4. Step 4: Simplify right side
    132,155.90x = 8,602,106,025.47
  5. Step 5: Solve for x
    x = 8,602,106,025.47/132,155.90
  6. Step 6: Final answer
    x = 65,090.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.