Home / 107,190.47-160,882.07-78,763.58

Finding the Fourth Proportional to 107,190.47, 160,882.07 and 78,763.58

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Solution

The fourth proportional to 107,190.47, 160,882.07 and 78,763.58 is: 118,216.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,190.47 : 160,882.07 = 78,763.58 : x
  2. Step 2: Convert to fraction form
    107,190.47/160,882.07 = 78,763.58/x
  3. Step 3: Cross multiply
    107,190.47x = 160,882.07 × 78,763.58
  4. Step 4: Simplify right side
    107,190.47x = 12,671,646,592.78
  5. Step 5: Solve for x
    x = 12,671,646,592.78/107,190.47
  6. Step 6: Final answer
    x = 118,216.17

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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.