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Finding the Fourth Proportional to 103,637.40, 155,456.10 and 37,079.70

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Solution

The fourth proportional to 103,637.40, 155,456.10 and 37,079.70 is: 55,619.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,637.40 : 155,456.10 = 37,079.70 : x
  2. Step 2: Convert to fraction form
    103,637.40/155,456.10 = 37,079.70/x
  3. Step 3: Cross multiply
    103,637.40x = 155,456.10 × 37,079.70
  4. Step 4: Simplify right side
    103,637.40x = 5,764,265,551.17
  5. Step 5: Solve for x
    x = 5,764,265,551.17/103,637.40
  6. Step 6: Final answer
    x = 55,619.55

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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.