Home / 121,749.66-168,031.22-70,065.70

Finding the Fourth Proportional to 121,749.66, 168,031.22 and 70,065.70

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Solution

The fourth proportional to 121,749.66, 168,031.22 and 70,065.70 is: 96,700.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,749.66 : 168,031.22 = 70,065.70 : x
  2. Step 2: Convert to fraction form
    121,749.66/168,031.22 = 70,065.70/x
  3. Step 3: Cross multiply
    121,749.66x = 168,031.22 × 70,065.70
  4. Step 4: Simplify right side
    121,749.66x = 11,773,225,051.15
  5. Step 5: Solve for x
    x = 11,773,225,051.15/121,749.66
  6. Step 6: Final answer
    x = 96,700.27

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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.