Home / 145,487.45-200,864.91-99,623.82

Finding the Fourth Proportional to 145,487.45, 200,864.91 and 99,623.82

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Solution

The fourth proportional to 145,487.45, 200,864.91 and 99,623.82 is: 137,544.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,487.45 : 200,864.91 = 99,623.82 : x
  2. Step 2: Convert to fraction form
    145,487.45/200,864.91 = 99,623.82/x
  3. Step 3: Cross multiply
    145,487.45x = 200,864.91 × 99,623.82
  4. Step 4: Simplify right side
    145,487.45x = 20,010,929,638.16
  5. Step 5: Solve for x
    x = 20,010,929,638.16/145,487.45
  6. Step 6: Final answer
    x = 137,544.03

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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.