Home / 134,787.90-186,006.77-74,362.31

Finding the Fourth Proportional to 134,787.90, 186,006.77 and 74,362.31

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Solution

The fourth proportional to 134,787.90, 186,006.77 and 74,362.31 is: 102,619.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,787.90 : 186,006.77 = 74,362.31 : x
  2. Step 2: Convert to fraction form
    134,787.90/186,006.77 = 74,362.31/x
  3. Step 3: Cross multiply
    134,787.90x = 186,006.77 × 74,362.31
  4. Step 4: Simplify right side
    134,787.90x = 13,831,891,790.99
  5. Step 5: Solve for x
    x = 13,831,891,790.99/134,787.90
  6. Step 6: Final answer
    x = 102,619.68

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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.