Home / 76,161.16-105,106.28-42,173.40

Finding the Fourth Proportional to 76,161.16, 105,106.28 and 42,173.40

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Solution

The fourth proportional to 76,161.16, 105,106.28 and 42,173.40 is: 58,201.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,161.16 : 105,106.28 = 42,173.40 : x
  2. Step 2: Convert to fraction form
    76,161.16/105,106.28 = 42,173.40/x
  3. Step 3: Cross multiply
    76,161.16x = 105,106.28 × 42,173.40
  4. Step 4: Simplify right side
    76,161.16x = 4,432,689,188.95
  5. Step 5: Solve for x
    x = 4,432,689,188.95/76,161.16
  6. Step 6: Final answer
    x = 58,201.44

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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.