Home / 122,116.20-183,087.90-47,207.40

Finding the Fourth Proportional to 122,116.20, 183,087.90 and 47,207.40

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Solution

The fourth proportional to 122,116.20, 183,087.90 and 47,207.40 is: 70,777.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,116.20 : 183,087.90 = 47,207.40 : x
  2. Step 2: Convert to fraction form
    122,116.20/183,087.90 = 47,207.40/x
  3. Step 3: Cross multiply
    122,116.20x = 183,087.90 × 47,207.40
  4. Step 4: Simplify right side
    122,116.20x = 8,643,103,730.46
  5. Step 5: Solve for x
    x = 8,643,103,730.46/122,116.20
  6. Step 6: Final answer
    x = 70,777.70

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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.