Home / 113,316.98-156,308.54-81,528.93

Finding the Fourth Proportional to 113,316.98, 156,308.54 and 81,528.93

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Solution

The fourth proportional to 113,316.98, 156,308.54 and 81,528.93 is: 112,460.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,316.98 : 156,308.54 = 81,528.93 : x
  2. Step 2: Convert to fraction form
    113,316.98/156,308.54 = 81,528.93/x
  3. Step 3: Cross multiply
    113,316.98x = 156,308.54 × 81,528.93
  4. Step 4: Simplify right side
    113,316.98x = 12,743,667,608.42
  5. Step 5: Solve for x
    x = 12,743,667,608.42/113,316.98
  6. Step 6: Final answer
    x = 112,460.36

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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.