Home / 124,975.13-172,465.67-68,386.50

Finding the Fourth Proportional to 124,975.13, 172,465.67 and 68,386.50

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Solution

The fourth proportional to 124,975.13, 172,465.67 and 68,386.50 is: 94,373.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,975.13 : 172,465.67 = 68,386.50 : x
  2. Step 2: Convert to fraction form
    124,975.13/172,465.67 = 68,386.50/x
  3. Step 3: Cross multiply
    124,975.13x = 172,465.67 × 68,386.50
  4. Step 4: Simplify right side
    124,975.13x = 11,794,323,712.42
  5. Step 5: Solve for x
    x = 11,794,323,712.42/124,975.13
  6. Step 6: Final answer
    x = 94,373.37

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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.