Home / 105,966.85-158,925.61-39,438.31

Finding the Fourth Proportional to 105,966.85, 158,925.61 and 39,438.31

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Solution

The fourth proportional to 105,966.85, 158,925.61 and 39,438.31 is: 59,148.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,966.85 : 158,925.61 = 39,438.31 : x
  2. Step 2: Convert to fraction form
    105,966.85/158,925.61 = 39,438.31/x
  3. Step 3: Cross multiply
    105,966.85x = 158,925.61 × 39,438.31
  4. Step 4: Simplify right side
    105,966.85x = 6,267,756,482.30
  5. Step 5: Solve for x
    x = 6,267,756,482.30/105,966.85
  6. Step 6: Final answer
    x = 59,148.28

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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.