Home / 112,723.40-155,574.87-64,967.42

Finding the Fourth Proportional to 112,723.40, 155,574.87 and 64,967.42

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Solution

The fourth proportional to 112,723.40, 155,574.87 and 64,967.42 is: 89,664.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,723.40 : 155,574.87 = 64,967.42 : x
  2. Step 2: Convert to fraction form
    112,723.40/155,574.87 = 64,967.42/x
  3. Step 3: Cross multiply
    112,723.40x = 155,574.87 × 64,967.42
  4. Step 4: Simplify right side
    112,723.40x = 10,107,297,920.74
  5. Step 5: Solve for x
    x = 10,107,297,920.74/112,723.40
  6. Step 6: Final answer
    x = 89,664.59

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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.