Home / 137,018.88-205,527.42-70,477.56

Finding the Fourth Proportional to 137,018.88, 205,527.42 and 70,477.56

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Solution

The fourth proportional to 137,018.88, 205,527.42 and 70,477.56 is: 105,715.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,018.88 : 205,527.42 = 70,477.56 : x
  2. Step 2: Convert to fraction form
    137,018.88/205,527.42 = 70,477.56/x
  3. Step 3: Cross multiply
    137,018.88x = 205,527.42 × 70,477.56
  4. Step 4: Simplify right side
    137,018.88x = 14,485,071,074.70
  5. Step 5: Solve for x
    x = 14,485,071,074.70/137,018.88
  6. Step 6: Final answer
    x = 105,715.88

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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.