Home / 149,763.90-206,719.95-92,420.76

Finding the Fourth Proportional to 149,763.90, 206,719.95 and 92,420.76

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Solution

The fourth proportional to 149,763.90, 206,719.95 and 92,420.76 is: 127,568.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,763.90 : 206,719.95 = 92,420.76 : x
  2. Step 2: Convert to fraction form
    149,763.90/206,719.95 = 92,420.76/x
  3. Step 3: Cross multiply
    149,763.90x = 206,719.95 × 92,420.76
  4. Step 4: Simplify right side
    149,763.90x = 19,105,214,886.16
  5. Step 5: Solve for x
    x = 19,105,214,886.16/149,763.90
  6. Step 6: Final answer
    x = 127,568.89

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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.