Home / 107,389.16-160,931.40-79,087.25

Finding the Fourth Proportional to 107,389.16, 160,931.40 and 79,087.25

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Solution

The fourth proportional to 107,389.16, 160,931.40 and 79,087.25 is: 118,518.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,389.16 : 160,931.40 = 79,087.25 : x
  2. Step 2: Convert to fraction form
    107,389.16/160,931.40 = 79,087.25/x
  3. Step 3: Cross multiply
    107,389.16x = 160,931.40 × 79,087.25
  4. Step 4: Simplify right side
    107,389.16x = 12,727,621,059.99
  5. Step 5: Solve for x
    x = 12,727,621,059.99/107,389.16
  6. Step 6: Final answer
    x = 118,518.68

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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.