Home / 105,019.60-157,529.40-103,637.20

Finding the Fourth Proportional to 105,019.60, 157,529.40 and 103,637.20

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Solution

The fourth proportional to 105,019.60, 157,529.40 and 103,637.20 is: 155,455.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,019.60 : 157,529.40 = 103,637.20 : x
  2. Step 2: Convert to fraction form
    105,019.60/157,529.40 = 103,637.20/x
  3. Step 3: Cross multiply
    105,019.60x = 157,529.40 × 103,637.20
  4. Step 4: Simplify right side
    105,019.60x = 16,325,905,933.68
  5. Step 5: Solve for x
    x = 16,325,905,933.68/105,019.60
  6. Step 6: Final answer
    x = 155,455.80

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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.