Home / 208,077.12-287,115.63-126,362.88

Finding the Fourth Proportional to 208,077.12, 287,115.63 and 126,362.88

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Solution

The fourth proportional to 208,077.12, 287,115.63 and 126,362.88 is: 174,362.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,077.12 : 287,115.63 = 126,362.88 : x
  2. Step 2: Convert to fraction form
    208,077.12/287,115.63 = 126,362.88/x
  3. Step 3: Cross multiply
    208,077.12x = 287,115.63 × 126,362.88
  4. Step 4: Simplify right side
    208,077.12x = 36,280,757,899.81
  5. Step 5: Solve for x
    x = 36,280,757,899.81/208,077.12
  6. Step 6: Final answer
    x = 174,362.07

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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.