Home / 213,177.61-294,167.44-121,272.45

Finding the Fourth Proportional to 213,177.61, 294,167.44 and 121,272.45

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Solution

The fourth proportional to 213,177.61, 294,167.44 and 121,272.45 is: 167,345.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,177.61 : 294,167.44 = 121,272.45 : x
  2. Step 2: Convert to fraction form
    213,177.61/294,167.44 = 121,272.45/x
  3. Step 3: Cross multiply
    213,177.61x = 294,167.44 × 121,272.45
  4. Step 4: Simplify right side
    213,177.61x = 35,674,406,159.03
  5. Step 5: Solve for x
    x = 35,674,406,159.03/213,177.61
  6. Step 6: Final answer
    x = 167,345.93

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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.