Home / 117,684.12-162,293.40-90,784.08

Finding the Fourth Proportional to 117,684.12, 162,293.40 and 90,784.08

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Solution

The fourth proportional to 117,684.12, 162,293.40 and 90,784.08 is: 125,196.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,684.12 : 162,293.40 = 90,784.08 : x
  2. Step 2: Convert to fraction form
    117,684.12/162,293.40 = 90,784.08/x
  3. Step 3: Cross multiply
    117,684.12x = 162,293.40 × 90,784.08
  4. Step 4: Simplify right side
    117,684.12x = 14,733,657,009.07
  5. Step 5: Solve for x
    x = 14,733,657,009.07/117,684.12
  6. Step 6: Final answer
    x = 125,196.65

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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.