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Finding the Fourth Proportional to 212,373, 293,081.64 and 121,746.14

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Solution

The fourth proportional to 212,373, 293,081.64 and 121,746.14 is: 168,013.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,373 : 293,081.64 = 121,746.14 : x
  2. Step 2: Convert to fraction form
    212,373/293,081.64 = 121,746.14/x
  3. Step 3: Cross multiply
    212,373x = 293,081.64 × 121,746.14
  4. Step 4: Simplify right side
    212,373x = 35,681,558,374.87
  5. Step 5: Solve for x
    x = 35,681,558,374.87/212,373
  6. Step 6: Final answer
    x = 168,013.63

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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.