Home / 124,739.04-172,140.48-68,151.36

Finding the Fourth Proportional to 124,739.04, 172,140.48 and 68,151.36

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Solution

The fourth proportional to 124,739.04, 172,140.48 and 68,151.36 is: 94,049.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,739.04 : 172,140.48 = 68,151.36 : x
  2. Step 2: Convert to fraction form
    124,739.04/172,140.48 = 68,151.36/x
  3. Step 3: Cross multiply
    124,739.04x = 172,140.48 × 68,151.36
  4. Step 4: Simplify right side
    124,739.04x = 11,731,607,823.05
  5. Step 5: Solve for x
    x = 11,731,607,823.05/124,739.04
  6. Step 6: Final answer
    x = 94,049.21

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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.