Home / 189,315.62-261,256.45-104,432.68

Finding the Fourth Proportional to 189,315.62, 261,256.45 and 104,432.68

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Solution

The fourth proportional to 189,315.62, 261,256.45 and 104,432.68 is: 144,117.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,315.62 : 261,256.45 = 104,432.68 : x
  2. Step 2: Convert to fraction form
    189,315.62/261,256.45 = 104,432.68/x
  3. Step 3: Cross multiply
    189,315.62x = 261,256.45 × 104,432.68
  4. Step 4: Simplify right side
    189,315.62x = 27,283,711,240.79
  5. Step 5: Solve for x
    x = 27,283,711,240.79/189,315.62
  6. Step 6: Final answer
    x = 144,117.59

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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.