Home / 112,526.88-155,145.96-72,169.44

Finding the Fourth Proportional to 112,526.88, 155,145.96 and 72,169.44

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Solution

The fourth proportional to 112,526.88, 155,145.96 and 72,169.44 is: 99,503.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,526.88 : 155,145.96 = 72,169.44 : x
  2. Step 2: Convert to fraction form
    112,526.88/155,145.96 = 72,169.44/x
  3. Step 3: Cross multiply
    112,526.88x = 155,145.96 × 72,169.44
  4. Step 4: Simplify right side
    112,526.88x = 11,196,797,051.46
  5. Step 5: Solve for x
    x = 11,196,797,051.46/112,526.88
  6. Step 6: Final answer
    x = 99,503.31

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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.