Home / 145,812.20-218,718.30-131,527.40

Finding the Fourth Proportional to 145,812.20, 218,718.30 and 131,527.40

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Solution

The fourth proportional to 145,812.20, 218,718.30 and 131,527.40 is: 197,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,812.20 : 218,718.30 = 131,527.40 : x
  2. Step 2: Convert to fraction form
    145,812.20/218,718.30 = 131,527.40/x
  3. Step 3: Cross multiply
    145,812.20x = 218,718.30 × 131,527.40
  4. Step 4: Simplify right side
    145,812.20x = 28,767,449,331.42
  5. Step 5: Solve for x
    x = 28,767,449,331.42/145,812.20
  6. Step 6: Final answer
    x = 197,291.10

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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.