Home / 109,497.40-164,246.10-91,782.70

Finding the Fourth Proportional to 109,497.40, 164,246.10 and 91,782.70

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Solution

The fourth proportional to 109,497.40, 164,246.10 and 91,782.70 is: 137,674.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,497.40 : 164,246.10 = 91,782.70 : x
  2. Step 2: Convert to fraction form
    109,497.40/164,246.10 = 91,782.70/x
  3. Step 3: Cross multiply
    109,497.40x = 164,246.10 × 91,782.70
  4. Step 4: Simplify right side
    109,497.40x = 15,074,950,522.47
  5. Step 5: Solve for x
    x = 15,074,950,522.47/109,497.40
  6. Step 6: Final answer
    x = 137,674.05

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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.