Home / 170,946.79-256,495.37-90,965.91

Finding the Fourth Proportional to 170,946.79, 256,495.37 and 90,965.91

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Solution

The fourth proportional to 170,946.79, 256,495.37 and 90,965.91 is: 136,488.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,946.79 : 256,495.37 = 90,965.91 : x
  2. Step 2: Convert to fraction form
    170,946.79/256,495.37 = 90,965.91/x
  3. Step 3: Cross multiply
    170,946.79x = 256,495.37 × 90,965.91
  4. Step 4: Simplify right side
    170,946.79x = 23,332,334,742.84
  5. Step 5: Solve for x
    x = 23,332,334,742.84/170,946.79
  6. Step 6: Final answer
    x = 136,488.87

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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.