Home / 149,283.63-206,009.98-81,301.74

Finding the Fourth Proportional to 149,283.63, 206,009.98 and 81,301.74

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Solution

The fourth proportional to 149,283.63, 206,009.98 and 81,301.74 is: 112,195.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,283.63 : 206,009.98 = 81,301.74 : x
  2. Step 2: Convert to fraction form
    149,283.63/206,009.98 = 81,301.74/x
  3. Step 3: Cross multiply
    149,283.63x = 206,009.98 × 81,301.74
  4. Step 4: Simplify right side
    149,283.63x = 16,748,969,628.11
  5. Step 5: Solve for x
    x = 16,748,969,628.11/149,283.63
  6. Step 6: Final answer
    x = 112,195.62

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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.