Home / 459,475.26-689,135.13-126,973.50

Finding the Fourth Proportional to 459,475.26, 689,135.13 and 126,973.50

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Solution

The fourth proportional to 459,475.26, 689,135.13 and 126,973.50 is: 190,438.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,475.26 : 689,135.13 = 126,973.50 : x
  2. Step 2: Convert to fraction form
    459,475.26/689,135.13 = 126,973.50/x
  3. Step 3: Cross multiply
    459,475.26x = 689,135.13 × 126,973.50
  4. Step 4: Simplify right side
    459,475.26x = 87,501,899,429.06
  5. Step 5: Solve for x
    x = 87,501,899,429.06/459,475.26
  6. Step 6: Final answer
    x = 190,438.76

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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.