Home / 212,381.52-292,988.40-136,954.32

Finding the Fourth Proportional to 212,381.52, 292,988.40 and 136,954.32

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Solution

The fourth proportional to 212,381.52, 292,988.40 and 136,954.32 is: 188,933.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,381.52 : 292,988.40 = 136,954.32 : x
  2. Step 2: Convert to fraction form
    212,381.52/292,988.40 = 136,954.32/x
  3. Step 3: Cross multiply
    212,381.52x = 292,988.40 × 136,954.32
  4. Step 4: Simplify right side
    212,381.52x = 40,126,027,089.89
  5. Step 5: Solve for x
    x = 40,126,027,089.89/212,381.52
  6. Step 6: Final answer
    x = 188,933.70

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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.