Home / 97,031.19-133,858.78-70,131.09

Finding the Fourth Proportional to 97,031.19, 133,858.78 and 70,131.09

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Solution

The fourth proportional to 97,031.19, 133,858.78 and 70,131.09 is: 96,748.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,031.19 : 133,858.78 = 70,131.09 : x
  2. Step 2: Convert to fraction form
    97,031.19/133,858.78 = 70,131.09/x
  3. Step 3: Cross multiply
    97,031.19x = 133,858.78 × 70,131.09
  4. Step 4: Simplify right side
    97,031.19x = 9,387,662,147.47
  5. Step 5: Solve for x
    x = 9,387,662,147.47/97,031.19
  6. Step 6: Final answer
    x = 96,748.91

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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.