Home / 145,472.23-200,637.69-99,559.03

Finding the Fourth Proportional to 145,472.23, 200,637.69 and 99,559.03

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Solution

The fourth proportional to 145,472.23, 200,637.69 and 99,559.03 is: 137,313.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,472.23 : 200,637.69 = 99,559.03 : x
  2. Step 2: Convert to fraction form
    145,472.23/200,637.69 = 99,559.03/x
  3. Step 3: Cross multiply
    145,472.23x = 200,637.69 × 99,559.03
  4. Step 4: Simplify right side
    145,472.23x = 19,975,293,797.84
  5. Step 5: Solve for x
    x = 19,975,293,797.84/145,472.23
  6. Step 6: Final answer
    x = 137,313.45

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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.