Home / 112,646.54-155,446.05-64,241.36

Finding the Fourth Proportional to 112,646.54, 155,446.05 and 64,241.36

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Solution

The fourth proportional to 112,646.54, 155,446.05 and 64,241.36 is: 88,649.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,646.54 : 155,446.05 = 64,241.36 : x
  2. Step 2: Convert to fraction form
    112,646.54/155,446.05 = 64,241.36/x
  3. Step 3: Cross multiply
    112,646.54x = 155,446.05 × 64,241.36
  4. Step 4: Simplify right side
    112,646.54x = 9,986,065,658.63
  5. Step 5: Solve for x
    x = 9,986,065,658.63/112,646.54
  6. Step 6: Final answer
    x = 88,649.56

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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.