Home / 144,623.10-216,934.65-131,720.70

Finding the Fourth Proportional to 144,623.10, 216,934.65 and 131,720.70

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Solution

The fourth proportional to 144,623.10, 216,934.65 and 131,720.70 is: 197,581.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,623.10 : 216,934.65 = 131,720.70 : x
  2. Step 2: Convert to fraction form
    144,623.10/216,934.65 = 131,720.70/x
  3. Step 3: Cross multiply
    144,623.10x = 216,934.65 × 131,720.70
  4. Step 4: Simplify right side
    144,623.10x = 28,574,783,952.26
  5. Step 5: Solve for x
    x = 28,574,783,952.26/144,623.10
  6. Step 6: Final answer
    x = 197,581.05

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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.