Home / 122,154.39-168,606.54-74,407.32

Finding the Fourth Proportional to 122,154.39, 168,606.54 and 74,407.32

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Solution

The fourth proportional to 122,154.39, 168,606.54 and 74,407.32 is: 102,702.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,154.39 : 168,606.54 = 74,407.32 : x
  2. Step 2: Convert to fraction form
    122,154.39/168,606.54 = 74,407.32/x
  3. Step 3: Cross multiply
    122,154.39x = 168,606.54 × 74,407.32
  4. Step 4: Simplify right side
    122,154.39x = 12,545,560,775.87
  5. Step 5: Solve for x
    x = 12,545,560,775.87/122,154.39
  6. Step 6: Final answer
    x = 102,702.50

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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.