Home / 145,437.80-218,091.90-66,576.20

Finding the Fourth Proportional to 145,437.80, 218,091.90 and 66,576.20

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Solution

The fourth proportional to 145,437.80, 218,091.90 and 66,576.20 is: 99,834.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,437.80 : 218,091.90 = 66,576.20 : x
  2. Step 2: Convert to fraction form
    145,437.80/218,091.90 = 66,576.20/x
  3. Step 3: Cross multiply
    145,437.80x = 218,091.90 × 66,576.20
  4. Step 4: Simplify right side
    145,437.80x = 14,519,729,952.78
  5. Step 5: Solve for x
    x = 14,519,729,952.78/145,437.80
  6. Step 6: Final answer
    x = 99,834.64

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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.