Home / 149,461.12-206,254.34-81,477.01

Finding the Fourth Proportional to 149,461.12, 206,254.34 and 81,477.01

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Solution

The fourth proportional to 149,461.12, 206,254.34 and 81,477.01 is: 112,437.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,461.12 : 206,254.34 = 81,477.01 : x
  2. Step 2: Convert to fraction form
    149,461.12/206,254.34 = 81,477.01/x
  3. Step 3: Cross multiply
    149,461.12x = 206,254.34 × 81,477.01
  4. Step 4: Simplify right side
    149,461.12x = 16,804,986,610.78
  5. Step 5: Solve for x
    x = 16,804,986,610.78/149,461.12
  6. Step 6: Final answer
    x = 112,437.18

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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.