Home / 189,580.17-261,621.90-103,536.93

Finding the Fourth Proportional to 189,580.17, 261,621.90 and 103,536.93

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Solution

The fourth proportional to 189,580.17, 261,621.90 and 103,536.93 is: 142,881.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,580.17 : 261,621.90 = 103,536.93 : x
  2. Step 2: Convert to fraction form
    189,580.17/261,621.90 = 103,536.93/x
  3. Step 3: Cross multiply
    189,580.17x = 261,621.90 × 103,536.93
  4. Step 4: Simplify right side
    189,580.17x = 27,087,528,346.77
  5. Step 5: Solve for x
    x = 27,087,528,346.77/189,580.17
  6. Step 6: Final answer
    x = 142,881.65

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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.