Home / 156,720.45-235,116.14-51,540.33

Finding the Fourth Proportional to 156,720.45, 235,116.14 and 51,540.33

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Solution

The fourth proportional to 156,720.45, 235,116.14 and 51,540.33 is: 77,322.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,720.45 : 235,116.14 = 51,540.33 : x
  2. Step 2: Convert to fraction form
    156,720.45/235,116.14 = 51,540.33/x
  3. Step 3: Cross multiply
    156,720.45x = 235,116.14 × 51,540.33
  4. Step 4: Simplify right side
    156,720.45x = 12,117,963,443.93
  5. Step 5: Solve for x
    x = 12,117,963,443.93/156,720.45
  6. Step 6: Final answer
    x = 77,322.16

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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.