Home / 99,507.72-137,087.04-69,240.96

Finding the Fourth Proportional to 99,507.72, 137,087.04 and 69,240.96

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Solution

The fourth proportional to 99,507.72, 137,087.04 and 69,240.96 is: 95,389.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,507.72 : 137,087.04 = 69,240.96 : x
  2. Step 2: Convert to fraction form
    99,507.72/137,087.04 = 69,240.96/x
  3. Step 3: Cross multiply
    99,507.72x = 137,087.04 × 69,240.96
  4. Step 4: Simplify right side
    99,507.72x = 9,492,038,253.16
  5. Step 5: Solve for x
    x = 9,492,038,253.16/99,507.72
  6. Step 6: Final answer
    x = 95,389.97

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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.