Home / 140,737.12-194,220.24-77,077.60

Finding the Fourth Proportional to 140,737.12, 194,220.24 and 77,077.60

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Solution

The fourth proportional to 140,737.12, 194,220.24 and 77,077.60 is: 106,368.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,737.12 : 194,220.24 = 77,077.60 : x
  2. Step 2: Convert to fraction form
    140,737.12/194,220.24 = 77,077.60/x
  3. Step 3: Cross multiply
    140,737.12x = 194,220.24 × 77,077.60
  4. Step 4: Simplify right side
    140,737.12x = 14,970,029,970.62
  5. Step 5: Solve for x
    x = 14,970,029,970.62/140,737.12
  6. Step 6: Final answer
    x = 106,368.74

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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.