Home / 145,595.10-218,423.70-82,444.80

Finding the Fourth Proportional to 145,595.10, 218,423.70 and 82,444.80

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Solution

The fourth proportional to 145,595.10, 218,423.70 and 82,444.80 is: 123,684.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,595.10 : 218,423.70 = 82,444.80 : x
  2. Step 2: Convert to fraction form
    145,595.10/218,423.70 = 82,444.80/x
  3. Step 3: Cross multiply
    145,595.10x = 218,423.70 × 82,444.80
  4. Step 4: Simplify right side
    145,595.10x = 18,007,898,261.76
  5. Step 5: Solve for x
    x = 18,007,898,261.76/145,595.10
  6. Step 6: Final answer
    x = 123,684.78

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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.