Home / 134,916.20-202,374.30-72,708.20

Finding the Fourth Proportional to 134,916.20, 202,374.30 and 72,708.20

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Solution

The fourth proportional to 134,916.20, 202,374.30 and 72,708.20 is: 109,062.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,916.20 : 202,374.30 = 72,708.20 : x
  2. Step 2: Convert to fraction form
    134,916.20/202,374.30 = 72,708.20/x
  3. Step 3: Cross multiply
    134,916.20x = 202,374.30 × 72,708.20
  4. Step 4: Simplify right side
    134,916.20x = 14,714,271,079.26
  5. Step 5: Solve for x
    x = 14,714,271,079.26/134,916.20
  6. Step 6: Final answer
    x = 109,062.30

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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.