Home / 124,038.20-186,057.30-71,404.40

Finding the Fourth Proportional to 124,038.20, 186,057.30 and 71,404.40

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Solution

The fourth proportional to 124,038.20, 186,057.30 and 71,404.40 is: 107,106.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,038.20 : 186,057.30 = 71,404.40 : x
  2. Step 2: Convert to fraction form
    124,038.20/186,057.30 = 71,404.40/x
  3. Step 3: Cross multiply
    124,038.20x = 186,057.30 × 71,404.40
  4. Step 4: Simplify right side
    124,038.20x = 13,285,309,872.12
  5. Step 5: Solve for x
    x = 13,285,309,872.12/124,038.20
  6. Step 6: Final answer
    x = 107,106.60

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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.