Home / 99,685.08-137,563.38-54,973.08

Finding the Fourth Proportional to 99,685.08, 137,563.38 and 54,973.08

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Solution

The fourth proportional to 99,685.08, 137,563.38 and 54,973.08 is: 75,861.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,685.08 : 137,563.38 = 54,973.08 : x
  2. Step 2: Convert to fraction form
    99,685.08/137,563.38 = 54,973.08/x
  3. Step 3: Cross multiply
    99,685.08x = 137,563.38 × 54,973.08
  4. Step 4: Simplify right side
    99,685.08x = 7,562,282,693.81
  5. Step 5: Solve for x
    x = 7,562,282,693.81/99,685.08
  6. Step 6: Final answer
    x = 75,861.73

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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.