Home / 146,139.90-219,267.45-57,378.30

Finding the Fourth Proportional to 146,139.90, 219,267.45 and 57,378.30

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Solution

The fourth proportional to 146,139.90, 219,267.45 and 57,378.30 is: 86,090.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,139.90 : 219,267.45 = 57,378.30 : x
  2. Step 2: Convert to fraction form
    146,139.90/219,267.45 = 57,378.30/x
  3. Step 3: Cross multiply
    146,139.90x = 219,267.45 × 57,378.30
  4. Step 4: Simplify right side
    146,139.90x = 12,581,193,526.34
  5. Step 5: Solve for x
    x = 12,581,193,526.34/146,139.90
  6. Step 6: Final answer
    x = 86,090.07

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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.