Home / 149,492.16-205,826.40-121,291.20

Finding the Fourth Proportional to 149,492.16, 205,826.40 and 121,291.20

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Solution

The fourth proportional to 149,492.16, 205,826.40 and 121,291.20 is: 166,998.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,492.16 : 205,826.40 = 121,291.20 : x
  2. Step 2: Convert to fraction form
    149,492.16/205,826.40 = 121,291.20/x
  3. Step 3: Cross multiply
    149,492.16x = 205,826.40 × 121,291.20
  4. Step 4: Simplify right side
    149,492.16x = 24,964,931,047.68
  5. Step 5: Solve for x
    x = 24,964,931,047.68/149,492.16
  6. Step 6: Final answer
    x = 166,998.26

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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.