Home / 141,237.50-194,925.04-81,621.50

Finding the Fourth Proportional to 141,237.50, 194,925.04 and 81,621.50

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Solution

The fourth proportional to 141,237.50, 194,925.04 and 81,621.50 is: 112,647.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,237.50 : 194,925.04 = 81,621.50 : x
  2. Step 2: Convert to fraction form
    141,237.50/194,925.04 = 81,621.50/x
  3. Step 3: Cross multiply
    141,237.50x = 194,925.04 × 81,621.50
  4. Step 4: Simplify right side
    141,237.50x = 15,910,074,152.36
  5. Step 5: Solve for x
    x = 15,910,074,152.36/141,237.50
  6. Step 6: Final answer
    x = 112,647.66

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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.