Home / 159,686.55-220,357.93-91,714.59

Finding the Fourth Proportional to 159,686.55, 220,357.93 and 91,714.59

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Solution

The fourth proportional to 159,686.55, 220,357.93 and 91,714.59 is: 126,560.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,686.55 : 220,357.93 = 91,714.59 : x
  2. Step 2: Convert to fraction form
    159,686.55/220,357.93 = 91,714.59/x
  3. Step 3: Cross multiply
    159,686.55x = 220,357.93 × 91,714.59
  4. Step 4: Simplify right side
    159,686.55x = 20,210,036,744.63
  5. Step 5: Solve for x
    x = 20,210,036,744.63/159,686.55
  6. Step 6: Final answer
    x = 126,560.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.