Home / 212,342.16-293,044.28-121,713.20

Finding the Fourth Proportional to 212,342.16, 293,044.28 and 121,713.20

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Solution

The fourth proportional to 212,342.16, 293,044.28 and 121,713.20 is: 167,971.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,342.16 : 293,044.28 = 121,713.20 : x
  2. Step 2: Convert to fraction form
    212,342.16/293,044.28 = 121,713.20/x
  3. Step 3: Cross multiply
    212,342.16x = 293,044.28 × 121,713.20
  4. Step 4: Simplify right side
    212,342.16x = 35,667,354,986.71
  5. Step 5: Solve for x
    x = 35,667,354,986.71/212,342.16
  6. Step 6: Final answer
    x = 167,971.14

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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.