Home / 145,388.70-218,082.33-38,772.42

Finding the Fourth Proportional to 145,388.70, 218,082.33 and 38,772.42

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Solution

The fourth proportional to 145,388.70, 218,082.33 and 38,772.42 is: 58,158.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,388.70 : 218,082.33 = 38,772.42 : x
  2. Step 2: Convert to fraction form
    145,388.70/218,082.33 = 38,772.42/x
  3. Step 3: Cross multiply
    145,388.70x = 218,082.33 × 38,772.42
  4. Step 4: Simplify right side
    145,388.70x = 8,455,579,693.34
  5. Step 5: Solve for x
    x = 8,455,579,693.34/145,388.70
  6. Step 6: Final answer
    x = 58,158.44

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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.