Home / 189,416.21-261,311.76-124,802.53

Finding the Fourth Proportional to 189,416.21, 261,311.76 and 124,802.53

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Solution

The fourth proportional to 189,416.21, 261,311.76 and 124,802.53 is: 172,173.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,416.21 : 261,311.76 = 124,802.53 : x
  2. Step 2: Convert to fraction form
    189,416.21/261,311.76 = 124,802.53/x
  3. Step 3: Cross multiply
    189,416.21x = 261,311.76 × 124,802.53
  4. Step 4: Simplify right side
    189,416.21x = 32,612,368,113.47
  5. Step 5: Solve for x
    x = 32,612,368,113.47/189,416.21
  6. Step 6: Final answer
    x = 172,173.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.