Home / 149,615.06-206,495.48-89,189.55

Finding the Fourth Proportional to 149,615.06, 206,495.48 and 89,189.55

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Solution

The fourth proportional to 149,615.06, 206,495.48 and 89,189.55 is: 123,097.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,615.06 : 206,495.48 = 89,189.55 : x
  2. Step 2: Convert to fraction form
    149,615.06/206,495.48 = 89,189.55/x
  3. Step 3: Cross multiply
    149,615.06x = 206,495.48 × 89,189.55
  4. Step 4: Simplify right side
    149,615.06x = 18,417,238,492.29
  5. Step 5: Solve for x
    x = 18,417,238,492.29/149,615.06
  6. Step 6: Final answer
    x = 123,097.50

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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.