Home / 136,990.17-205,403.13-56,931.57

Finding the Fourth Proportional to 136,990.17, 205,403.13 and 56,931.57

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Solution

The fourth proportional to 136,990.17, 205,403.13 and 56,931.57 is: 85,363.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,990.17 : 205,403.13 = 56,931.57 : x
  2. Step 2: Convert to fraction form
    136,990.17/205,403.13 = 56,931.57/x
  3. Step 3: Cross multiply
    136,990.17x = 205,403.13 × 56,931.57
  4. Step 4: Simplify right side
    136,990.17x = 11,693,922,673.81
  5. Step 5: Solve for x
    x = 11,693,922,673.81/136,990.17
  6. Step 6: Final answer
    x = 85,363.22

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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.