Home / 212,329.40-293,017.83-121,693.28

Finding the Fourth Proportional to 212,329.40, 293,017.83 and 121,693.28

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Solution

The fourth proportional to 212,329.40, 293,017.83 and 121,693.28 is: 167,938.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,329.40 : 293,017.83 = 121,693.28 : x
  2. Step 2: Convert to fraction form
    212,329.40/293,017.83 = 121,693.28/x
  3. Step 3: Cross multiply
    212,329.40x = 293,017.83 × 121,693.28
  4. Step 4: Simplify right side
    212,329.40x = 35,658,300,831.18
  5. Step 5: Solve for x
    x = 35,658,300,831.18/212,329.40
  6. Step 6: Final answer
    x = 167,938.59

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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.