Home / 145,473.23-200,639.07-99,560.03

Finding the Fourth Proportional to 145,473.23, 200,639.07 and 99,560.03

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Solution

The fourth proportional to 145,473.23, 200,639.07 and 99,560.03 is: 137,314.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,473.23 : 200,639.07 = 99,560.03 : x
  2. Step 2: Convert to fraction form
    145,473.23/200,639.07 = 99,560.03/x
  3. Step 3: Cross multiply
    145,473.23x = 200,639.07 × 99,560.03
  4. Step 4: Simplify right side
    145,473.23x = 19,975,631,828.37
  5. Step 5: Solve for x
    x = 19,975,631,828.37/145,473.23
  6. Step 6: Final answer
    x = 137,314.83

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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.