Home / 136,880.16-205,320.23-43,385.91

Finding the Fourth Proportional to 136,880.16, 205,320.23 and 43,385.91

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Solution

The fourth proportional to 136,880.16, 205,320.23 and 43,385.91 is: 65,078.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,880.16 : 205,320.23 = 43,385.91 : x
  2. Step 2: Convert to fraction form
    136,880.16/205,320.23 = 43,385.91/x
  3. Step 3: Cross multiply
    136,880.16x = 205,320.23 × 43,385.91
  4. Step 4: Simplify right side
    136,880.16x = 8,908,005,019.96
  5. Step 5: Solve for x
    x = 8,908,005,019.96/136,880.16
  6. Step 6: Final answer
    x = 65,078.86

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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.