Home / 208,470.12-287,703.16-126,830.22

Finding the Fourth Proportional to 208,470.12, 287,703.16 and 126,830.22

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Solution

The fourth proportional to 208,470.12, 287,703.16 and 126,830.22 is: 175,034.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,470.12 : 287,703.16 = 126,830.22 : x
  2. Step 2: Convert to fraction form
    208,470.12/287,703.16 = 126,830.22/x
  3. Step 3: Cross multiply
    208,470.12x = 287,703.16 × 126,830.22
  4. Step 4: Simplify right side
    208,470.12x = 36,489,455,077.50
  5. Step 5: Solve for x
    x = 36,489,455,077.50/208,470.12
  6. Step 6: Final answer
    x = 175,034.46

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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.