Home / 105,253.58-157,942.64-38,740.42

Finding the Fourth Proportional to 105,253.58, 157,942.64 and 38,740.42

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Solution

The fourth proportional to 105,253.58, 157,942.64 and 38,740.42 is: 58,133.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,253.58 : 157,942.64 = 38,740.42 : x
  2. Step 2: Convert to fraction form
    105,253.58/157,942.64 = 38,740.42/x
  3. Step 3: Cross multiply
    105,253.58x = 157,942.64 × 38,740.42
  4. Step 4: Simplify right side
    105,253.58x = 6,118,764,209.51
  5. Step 5: Solve for x
    x = 6,118,764,209.51/105,253.58
  6. Step 6: Final answer
    x = 58,133.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.