Home / 145,025.80-217,538.70-97,786.60

Finding the Fourth Proportional to 145,025.80, 217,538.70 and 97,786.60

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Solution

The fourth proportional to 145,025.80, 217,538.70 and 97,786.60 is: 146,679.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,025.80 : 217,538.70 = 97,786.60 : x
  2. Step 2: Convert to fraction form
    145,025.80/217,538.70 = 97,786.60/x
  3. Step 3: Cross multiply
    145,025.80x = 217,538.70 × 97,786.60
  4. Step 4: Simplify right side
    145,025.80x = 21,272,369,841.42
  5. Step 5: Solve for x
    x = 21,272,369,841.42/145,025.80
  6. Step 6: Final answer
    x = 146,679.90

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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.