Home / 208,155.48-287,223.78-126,441.24

Finding the Fourth Proportional to 208,155.48, 287,223.78 and 126,441.24

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Solution

The fourth proportional to 208,155.48, 287,223.78 and 126,441.24 is: 174,470.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,155.48 : 287,223.78 = 126,441.24 : x
  2. Step 2: Convert to fraction form
    208,155.48/287,223.78 = 126,441.24/x
  3. Step 3: Cross multiply
    208,155.48x = 287,223.78 × 126,441.24
  4. Step 4: Simplify right side
    208,155.48x = 36,316,930,900.69
  5. Step 5: Solve for x
    x = 36,316,930,900.69/208,155.48
  6. Step 6: Final answer
    x = 174,470.21

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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.