Home / 103,240.10-154,860.15-91,964.90

Finding the Fourth Proportional to 103,240.10, 154,860.15 and 91,964.90

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Solution

The fourth proportional to 103,240.10, 154,860.15 and 91,964.90 is: 137,947.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,240.10 : 154,860.15 = 91,964.90 : x
  2. Step 2: Convert to fraction form
    103,240.10/154,860.15 = 91,964.90/x
  3. Step 3: Cross multiply
    103,240.10x = 154,860.15 × 91,964.90
  4. Step 4: Simplify right side
    103,240.10x = 14,241,698,208.74
  5. Step 5: Solve for x
    x = 14,241,698,208.74/103,240.10
  6. Step 6: Final answer
    x = 137,947.35

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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.