Home / 117,881.34-162,667.59-70,125.78

Finding the Fourth Proportional to 117,881.34, 162,667.59 and 70,125.78

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Solution

The fourth proportional to 117,881.34, 162,667.59 and 70,125.78 is: 96,768.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,881.34 : 162,667.59 = 70,125.78 : x
  2. Step 2: Convert to fraction form
    117,881.34/162,667.59 = 70,125.78/x
  3. Step 3: Cross multiply
    117,881.34x = 162,667.59 × 70,125.78
  4. Step 4: Simplify right side
    117,881.34x = 11,407,191,629.47
  5. Step 5: Solve for x
    x = 11,407,191,629.47/117,881.34
  6. Step 6: Final answer
    x = 96,768.43

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1.5x scale

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.