Home / 118,231.22-163,336.79-77,492.01

Finding the Fourth Proportional to 118,231.22, 163,336.79 and 77,492.01

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Solution

The fourth proportional to 118,231.22, 163,336.79 and 77,492.01 is: 107,055.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,231.22 : 163,336.79 = 77,492.01 : x
  2. Step 2: Convert to fraction form
    118,231.22/163,336.79 = 77,492.01/x
  3. Step 3: Cross multiply
    118,231.22x = 163,336.79 × 77,492.01
  4. Step 4: Simplify right side
    118,231.22x = 12,657,295,776.59
  5. Step 5: Solve for x
    x = 12,657,295,776.59/118,231.22
  6. Step 6: Final answer
    x = 107,055.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.