Home / 115,299.96-159,089.64-70,001.76

Finding the Fourth Proportional to 115,299.96, 159,089.64 and 70,001.76

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Solution

The fourth proportional to 115,299.96, 159,089.64 and 70,001.76 is: 96,587.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,299.96 : 159,089.64 = 70,001.76 : x
  2. Step 2: Convert to fraction form
    115,299.96/159,089.64 = 70,001.76/x
  3. Step 3: Cross multiply
    115,299.96x = 159,089.64 × 70,001.76
  4. Step 4: Simplify right side
    115,299.96x = 11,136,554,797.77
  5. Step 5: Solve for x
    x = 11,136,554,797.77/115,299.96
  6. Step 6: Final answer
    x = 96,587.67

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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.