Home / 112,539.17-155,286.79-64,783.26

Finding the Fourth Proportional to 112,539.17, 155,286.79 and 64,783.26

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Solution

The fourth proportional to 112,539.17, 155,286.79 and 64,783.26 is: 89,390.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,539.17 : 155,286.79 = 64,783.26 : x
  2. Step 2: Convert to fraction form
    112,539.17/155,286.79 = 64,783.26/x
  3. Step 3: Cross multiply
    112,539.17x = 155,286.79 × 64,783.26
  4. Step 4: Simplify right side
    112,539.17x = 10,059,984,329.18
  5. Step 5: Solve for x
    x = 10,059,984,329.18/112,539.17
  6. Step 6: Final answer
    x = 89,390.96

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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.