Home / 124,730.45-172,127.72-68,142.23

Finding the Fourth Proportional to 124,730.45, 172,127.72 and 68,142.23

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Solution

The fourth proportional to 124,730.45, 172,127.72 and 68,142.23 is: 94,036.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,730.45 : 172,127.72 = 68,142.23 : x
  2. Step 2: Convert to fraction form
    124,730.45/172,127.72 = 68,142.23/x
  3. Step 3: Cross multiply
    124,730.45x = 172,127.72 × 68,142.23
  4. Step 4: Simplify right side
    124,730.45x = 11,729,165,484.27
  5. Step 5: Solve for x
    x = 11,729,165,484.27/124,730.45
  6. Step 6: Final answer
    x = 94,036.11

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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.