Home / 109,582.20-164,438.10-79,925.40

Finding the Fourth Proportional to 109,582.20, 164,438.10 and 79,925.40

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Solution

The fourth proportional to 109,582.20, 164,438.10 and 79,925.40 is: 119,935.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,582.20 : 164,438.10 = 79,925.40 : x
  2. Step 2: Convert to fraction form
    109,582.20/164,438.10 = 79,925.40/x
  3. Step 3: Cross multiply
    109,582.20x = 164,438.10 × 79,925.40
  4. Step 4: Simplify right side
    109,582.20x = 13,142,780,917.74
  5. Step 5: Solve for x
    x = 13,142,780,917.74/109,582.20
  6. Step 6: Final answer
    x = 119,935.36

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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.