Home / 212,513.55-293,259.21-121,804.47

Finding the Fourth Proportional to 212,513.55, 293,259.21 and 121,804.47

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Solution

The fourth proportional to 212,513.55, 293,259.21 and 121,804.47 is: 168,084.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,513.55 : 293,259.21 = 121,804.47 : x
  2. Step 2: Convert to fraction form
    212,513.55/293,259.21 = 121,804.47/x
  3. Step 3: Cross multiply
    212,513.55x = 293,259.21 × 121,804.47
  4. Step 4: Simplify right side
    212,513.55x = 35,720,282,646.67
  5. Step 5: Solve for x
    x = 35,720,282,646.67/212,513.55
  6. Step 6: Final answer
    x = 168,084.73

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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.