Home / 119,160.10-164,441.91-65,445.76

Finding the Fourth Proportional to 119,160.10, 164,441.91 and 65,445.76

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Solution

The fourth proportional to 119,160.10, 164,441.91 and 65,445.76 is: 90,315.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,160.10 : 164,441.91 = 65,445.76 : x
  2. Step 2: Convert to fraction form
    119,160.10/164,441.91 = 65,445.76/x
  3. Step 3: Cross multiply
    119,160.10x = 164,441.91 × 65,445.76
  4. Step 4: Simplify right side
    119,160.10x = 10,762,025,775.80
  5. Step 5: Solve for x
    x = 10,762,025,775.80/119,160.10
  6. Step 6: Final answer
    x = 90,315.68

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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.