Home / 143,563.04-215,328.12-38,390.20

Finding the Fourth Proportional to 143,563.04, 215,328.12 and 38,390.20

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Solution

The fourth proportional to 143,563.04, 215,328.12 and 38,390.20 is: 57,580.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,563.04 : 215,328.12 = 38,390.20 : x
  2. Step 2: Convert to fraction form
    143,563.04/215,328.12 = 38,390.20/x
  3. Step 3: Cross multiply
    143,563.04x = 215,328.12 × 38,390.20
  4. Step 4: Simplify right side
    143,563.04x = 8,266,489,592.42
  5. Step 5: Solve for x
    x = 8,266,489,592.42/143,563.04
  6. Step 6: Final answer
    x = 57,580.90

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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.