Home / 189,663.34-261,753.51-103,635.40

Finding the Fourth Proportional to 189,663.34, 261,753.51 and 103,635.40

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Solution

The fourth proportional to 189,663.34, 261,753.51 and 103,635.40 is: 143,026.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,663.34 : 261,753.51 = 103,635.40 : x
  2. Step 2: Convert to fraction form
    189,663.34/261,753.51 = 103,635.40/x
  3. Step 3: Cross multiply
    189,663.34x = 261,753.51 × 103,635.40
  4. Step 4: Simplify right side
    189,663.34x = 27,126,929,710.25
  5. Step 5: Solve for x
    x = 27,126,929,710.25/189,663.34
  6. Step 6: Final answer
    x = 143,026.74

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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.