Home / 122,125.14-168,566.13-74,378.07

Finding the Fourth Proportional to 122,125.14, 168,566.13 and 74,378.07

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Solution

The fourth proportional to 122,125.14, 168,566.13 and 74,378.07 is: 102,662.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,125.14 : 168,566.13 = 74,378.07 : x
  2. Step 2: Convert to fraction form
    122,125.14/168,566.13 = 74,378.07/x
  3. Step 3: Cross multiply
    122,125.14x = 168,566.13 × 74,378.07
  4. Step 4: Simplify right side
    122,125.14x = 12,537,623,416.77
  5. Step 5: Solve for x
    x = 12,537,623,416.77/122,125.14
  6. Step 6: Final answer
    x = 102,662.10

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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.