Home / 121,946.74-168,282.21-67,499.02

Finding the Fourth Proportional to 121,946.74, 168,282.21 and 67,499.02

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Solution

The fourth proportional to 121,946.74, 168,282.21 and 67,499.02 is: 93,146.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,946.74 : 168,282.21 = 67,499.02 : x
  2. Step 2: Convert to fraction form
    121,946.74/168,282.21 = 67,499.02/x
  3. Step 3: Cross multiply
    121,946.74x = 168,282.21 × 67,499.02
  4. Step 4: Simplify right side
    121,946.74x = 11,358,883,417.02
  5. Step 5: Solve for x
    x = 11,358,883,417.02/121,946.74
  6. Step 6: Final answer
    x = 93,146.27

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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.