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Finding the Fourth Proportional to 158,658, 237,987.74 and 53,477.88

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Solution

The fourth proportional to 158,658, 237,987.74 and 53,477.88 is: 80,217.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,658 : 237,987.74 = 53,477.88 : x
  2. Step 2: Convert to fraction form
    158,658/237,987.74 = 53,477.88/x
  3. Step 3: Cross multiply
    158,658x = 237,987.74 × 53,477.88
  4. Step 4: Simplify right side
    158,658x = 12,727,079,801.19
  5. Step 5: Solve for x
    x = 12,727,079,801.19/158,658
  6. Step 6: Final answer
    x = 80,217.07

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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.