Home / 122,031.48-168,501.42-98,081.40

Finding the Fourth Proportional to 122,031.48, 168,501.42 and 98,081.40

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Solution

The fourth proportional to 122,031.48, 168,501.42 and 98,081.40 is: 135,431.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,031.48 : 168,501.42 = 98,081.40 : x
  2. Step 2: Convert to fraction form
    122,031.48/168,501.42 = 98,081.40/x
  3. Step 3: Cross multiply
    122,031.48x = 168,501.42 × 98,081.40
  4. Step 4: Simplify right side
    122,031.48x = 16,526,855,175.59
  5. Step 5: Solve for x
    x = 16,526,855,175.59/122,031.48
  6. Step 6: Final answer
    x = 135,431.08

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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.