Home / 121,430.58-182,161.13-65,193.39

Finding the Fourth Proportional to 121,430.58, 182,161.13 and 65,193.39

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Solution

The fourth proportional to 121,430.58, 182,161.13 and 65,193.39 is: 97,798.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,430.58 : 182,161.13 = 65,193.39 : x
  2. Step 2: Convert to fraction form
    121,430.58/182,161.13 = 65,193.39/x
  3. Step 3: Cross multiply
    121,430.58x = 182,161.13 × 65,193.39
  4. Step 4: Simplify right side
    121,430.58x = 11,875,701,590.93
  5. Step 5: Solve for x
    x = 11,875,701,590.93/121,430.58
  6. Step 6: Final answer
    x = 97,798.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.