Home / 126,139.35-174,070.08-68,779.13

Finding the Fourth Proportional to 126,139.35, 174,070.08 and 68,779.13

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Solution

The fourth proportional to 126,139.35, 174,070.08 and 68,779.13 is: 94,913.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,139.35 : 174,070.08 = 68,779.13 : x
  2. Step 2: Convert to fraction form
    126,139.35/174,070.08 = 68,779.13/x
  3. Step 3: Cross multiply
    126,139.35x = 174,070.08 × 68,779.13
  4. Step 4: Simplify right side
    126,139.35x = 11,972,387,791.08
  5. Step 5: Solve for x
    x = 11,972,387,791.08/126,139.35
  6. Step 6: Final answer
    x = 94,913.98

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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.