Home / 113,539.08-155,549.28-109,282.68

Finding the Fourth Proportional to 113,539.08, 155,549.28 and 109,282.68

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Solution

The fourth proportional to 113,539.08, 155,549.28 and 109,282.68 is: 149,717.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,539.08 : 155,549.28 = 109,282.68 : x
  2. Step 2: Convert to fraction form
    113,539.08/155,549.28 = 109,282.68/x
  3. Step 3: Cross multiply
    113,539.08x = 155,549.28 × 109,282.68
  4. Step 4: Simplify right side
    113,539.08x = 16,998,842,190.47
  5. Step 5: Solve for x
    x = 16,998,842,190.47/113,539.08
  6. Step 6: Final answer
    x = 149,717.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.