Home / 127,730.90-176,266.36-71,141.06

Finding the Fourth Proportional to 127,730.90, 176,266.36 and 71,141.06

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Solution

The fourth proportional to 127,730.90, 176,266.36 and 71,141.06 is: 98,173.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,730.90 : 176,266.36 = 71,141.06 : x
  2. Step 2: Convert to fraction form
    127,730.90/176,266.36 = 71,141.06/x
  3. Step 3: Cross multiply
    127,730.90x = 176,266.36 × 71,141.06
  4. Step 4: Simplify right side
    127,730.90x = 12,539,776,222.33
  5. Step 5: Solve for x
    x = 12,539,776,222.33/127,730.90
  6. Step 6: Final answer
    x = 98,173.39

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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.