Home / 109,347.08-164,034.50-42,778.67

Finding the Fourth Proportional to 109,347.08, 164,034.50 and 42,778.67

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Solution

The fourth proportional to 109,347.08, 164,034.50 and 42,778.67 is: 64,173.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,347.08 : 164,034.50 = 42,778.67 : x
  2. Step 2: Convert to fraction form
    109,347.08/164,034.50 = 42,778.67/x
  3. Step 3: Cross multiply
    109,347.08x = 164,034.50 × 42,778.67
  4. Step 4: Simplify right side
    109,347.08x = 7,017,176,710.05
  5. Step 5: Solve for x
    x = 7,017,176,710.05/109,347.08
  6. Step 6: Final answer
    x = 64,173.43

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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.