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Finding the Fourth Proportional to 180,018.78, 248,440.77 and 103,562.70

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Solution

The fourth proportional to 180,018.78, 248,440.77 and 103,562.70 is: 142,925.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,018.78 : 248,440.77 = 103,562.70 : x
  2. Step 2: Convert to fraction form
    180,018.78/248,440.77 = 103,562.70/x
  3. Step 3: Cross multiply
    180,018.78x = 248,440.77 × 103,562.70
  4. Step 4: Simplify right side
    180,018.78x = 25,729,196,931.28
  5. Step 5: Solve for x
    x = 25,729,196,931.28/180,018.78
  6. Step 6: Final answer
    x = 142,925.07

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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.