Home / 121,852,856.25-168,116,048.37-69,604,901.37

Finding the Fourth Proportional to 121,852,856.25, 168,116,048.37 and 69,604,901.37

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Solution

The fourth proportional to 121,852,856.25, 168,116,048.37 and 69,604,901.37 is: 96,031,404.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,852,856.25 : 168,116,048.37 = 69,604,901.37 : x
  2. Step 2: Convert to fraction form
    121,852,856.25/168,116,048.37 = 69,604,901.37/x
  3. Step 3: Cross multiply
    121,852,856.25x = 168,116,048.37 × 69,604,901.37
  4. Step 4: Simplify right side
    121,852,856.25x = 11,701,700,965,508,000
  5. Step 5: Solve for x
    x = 11,701,700,965,508,000/121,852,856.25
  6. Step 6: Final answer
    x = 96,031,404.81

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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.