Home / 154,256.80-231,339.81-69,968.20

Finding the Fourth Proportional to 154,256.80, 231,339.81 and 69,968.20

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Solution

The fourth proportional to 154,256.80, 231,339.81 and 69,968.20 is: 104,931.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,256.80 : 231,339.81 = 69,968.20 : x
  2. Step 2: Convert to fraction form
    154,256.80/231,339.81 = 69,968.20/x
  3. Step 3: Cross multiply
    154,256.80x = 231,339.81 × 69,968.20
  4. Step 4: Simplify right side
    154,256.80x = 16,186,430,094.04
  5. Step 5: Solve for x
    x = 16,186,430,094.04/154,256.80
  6. Step 6: Final answer
    x = 104,931.71

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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.