Home / 112,957.44-155,984.94-72,741.84

Finding the Fourth Proportional to 112,957.44, 155,984.94 and 72,741.84

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Solution

The fourth proportional to 112,957.44, 155,984.94 and 72,741.84 is: 100,450.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,957.44 : 155,984.94 = 72,741.84 : x
  2. Step 2: Convert to fraction form
    112,957.44/155,984.94 = 72,741.84/x
  3. Step 3: Cross multiply
    112,957.44x = 155,984.94 × 72,741.84
  4. Step 4: Simplify right side
    112,957.44x = 11,346,631,547.89
  5. Step 5: Solve for x
    x = 11,346,631,547.89/112,957.44
  6. Step 6: Final answer
    x = 100,450.50

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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.