Home / 208,155.31-287,261.28-127,567.26

Finding the Fourth Proportional to 208,155.31, 287,261.28 and 127,567.26

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Solution

The fourth proportional to 208,155.31, 287,261.28 and 127,567.26 is: 176,047.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,155.31 : 287,261.28 = 127,567.26 : x
  2. Step 2: Convert to fraction form
    208,155.31/287,261.28 = 127,567.26/x
  3. Step 3: Cross multiply
    208,155.31x = 287,261.28 × 127,567.26
  4. Step 4: Simplify right side
    208,155.31x = 36,645,134,393.69
  5. Step 5: Solve for x
    x = 36,645,134,393.69/208,155.31
  6. Step 6: Final answer
    x = 176,047.08

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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.