Home / 145,851.70-218,777.55-133,385.80

Finding the Fourth Proportional to 145,851.70, 218,777.55 and 133,385.80

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Solution

The fourth proportional to 145,851.70, 218,777.55 and 133,385.80 is: 200,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,851.70 : 218,777.55 = 133,385.80 : x
  2. Step 2: Convert to fraction form
    145,851.70/218,777.55 = 133,385.80/x
  3. Step 3: Cross multiply
    145,851.70x = 218,777.55 × 133,385.80
  4. Step 4: Simplify right side
    145,851.70x = 29,181,818,528.79
  5. Step 5: Solve for x
    x = 29,181,818,528.79/145,851.70
  6. Step 6: Final answer
    x = 200,078.70

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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.