Home / 172,639.45-238,242.36-101,033.12

Finding the Fourth Proportional to 172,639.45, 238,242.36 and 101,033.12

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Solution

The fourth proportional to 172,639.45, 238,242.36 and 101,033.12 is: 139,425.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,639.45 : 238,242.36 = 101,033.12 : x
  2. Step 2: Convert to fraction form
    172,639.45/238,242.36 = 101,033.12/x
  3. Step 3: Cross multiply
    172,639.45x = 238,242.36 × 101,033.12
  4. Step 4: Simplify right side
    172,639.45x = 24,070,369,921.44
  5. Step 5: Solve for x
    x = 24,070,369,921.44/172,639.45
  6. Step 6: Final answer
    x = 139,425.66

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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.