Home / 105,666.42-158,482.78-39,091.40

Finding the Fourth Proportional to 105,666.42, 158,482.78 and 39,091.40

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Solution

The fourth proportional to 105,666.42, 158,482.78 and 39,091.40 is: 58,630.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,666.42 : 158,482.78 = 39,091.40 : x
  2. Step 2: Convert to fraction form
    105,666.42/158,482.78 = 39,091.40/x
  3. Step 3: Cross multiply
    105,666.42x = 158,482.78 × 39,091.40
  4. Step 4: Simplify right side
    105,666.42x = 6,195,313,746.09
  5. Step 5: Solve for x
    x = 6,195,313,746.09/105,666.42
  6. Step 6: Final answer
    x = 58,630.87

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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.