Home / 122,176.34-168,603.12-74,429.68

Finding the Fourth Proportional to 122,176.34, 168,603.12 and 74,429.68

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Solution

The fourth proportional to 122,176.34, 168,603.12 and 74,429.68 is: 102,712.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,176.34 : 168,603.12 = 74,429.68 : x
  2. Step 2: Convert to fraction form
    122,176.34/168,603.12 = 74,429.68/x
  3. Step 3: Cross multiply
    122,176.34x = 168,603.12 × 74,429.68
  4. Step 4: Simplify right side
    122,176.34x = 12,549,076,479.36
  5. Step 5: Solve for x
    x = 12,549,076,479.36/122,176.34
  6. Step 6: Final answer
    x = 102,712.82

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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.