Home / 212,492.16-293,240.25-121,851.54

Finding the Fourth Proportional to 212,492.16, 293,240.25 and 121,851.54

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Solution

The fourth proportional to 212,492.16, 293,240.25 and 121,851.54 is: 168,155.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,492.16 : 293,240.25 = 121,851.54 : x
  2. Step 2: Convert to fraction form
    212,492.16/293,240.25 = 121,851.54/x
  3. Step 3: Cross multiply
    212,492.16x = 293,240.25 × 121,851.54
  4. Step 4: Simplify right side
    212,492.16x = 35,731,776,052.49
  5. Step 5: Solve for x
    x = 35,731,776,052.49/212,492.16
  6. Step 6: Final answer
    x = 168,155.74

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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.