Home / 109,869.72-151,631.51-66,852.33

Finding the Fourth Proportional to 109,869.72, 151,631.51 and 66,852.33

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Solution

The fourth proportional to 109,869.72, 151,631.51 and 66,852.33 is: 92,263.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,869.72 : 151,631.51 = 66,852.33 : x
  2. Step 2: Convert to fraction form
    109,869.72/151,631.51 = 66,852.33/x
  3. Step 3: Cross multiply
    109,869.72x = 151,631.51 × 66,852.33
  4. Step 4: Simplify right side
    109,869.72x = 10,136,919,744.92
  5. Step 5: Solve for x
    x = 10,136,919,744.92/109,869.72
  6. Step 6: Final answer
    x = 92,263.09

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1.5x scale

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.