Home / 459,070.25-688,645.07-126,646.25

Finding the Fourth Proportional to 459,070.25, 688,645.07 and 126,646.25

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Solution

The fourth proportional to 459,070.25, 688,645.07 and 126,646.25 is: 189,980.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,070.25 : 688,645.07 = 126,646.25 : x
  2. Step 2: Convert to fraction form
    459,070.25/688,645.07 = 126,646.25/x
  3. Step 3: Cross multiply
    459,070.25x = 688,645.07 × 126,646.25
  4. Step 4: Simplify right side
    459,070.25x = 87,214,315,696.49
  5. Step 5: Solve for x
    x = 87,214,315,696.49/459,070.25
  6. Step 6: Final answer
    x = 189,980.33

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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.