Home / 103,456.39-155,184.36-28,576.34

Finding the Fourth Proportional to 103,456.39, 155,184.36 and 28,576.34

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Solution

The fourth proportional to 103,456.39, 155,184.36 and 28,576.34 is: 42,864.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,456.39 : 155,184.36 = 28,576.34 : x
  2. Step 2: Convert to fraction form
    103,456.39/155,184.36 = 28,576.34/x
  3. Step 3: Cross multiply
    103,456.39x = 155,184.36 × 28,576.34
  4. Step 4: Simplify right side
    103,456.39x = 4,434,601,605.81
  5. Step 5: Solve for x
    x = 4,434,601,605.81/103,456.39
  6. Step 6: Final answer
    x = 42,864.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.