Home / 103,637.93-155,456.90-28,758.10

Finding the Fourth Proportional to 103,637.93, 155,456.90 and 28,758.10

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Solution

The fourth proportional to 103,637.93, 155,456.90 and 28,758.10 is: 43,137.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,637.93 : 155,456.90 = 28,758.10 : x
  2. Step 2: Convert to fraction form
    103,637.93/155,456.90 = 28,758.10/x
  3. Step 3: Cross multiply
    103,637.93x = 155,456.90 × 28,758.10
  4. Step 4: Simplify right side
    103,637.93x = 4,470,645,654.15
  5. Step 5: Solve for x
    x = 4,470,645,654.15/103,637.93
  6. Step 6: Final answer
    x = 43,137.15

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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.