Home / 212,945.60-293,854.40-128,046.24

Finding the Fourth Proportional to 212,945.60, 293,854.40 and 128,046.24

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Solution

The fourth proportional to 212,945.60, 293,854.40 and 128,046.24 is: 176,697.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,945.60 : 293,854.40 = 128,046.24 : x
  2. Step 2: Convert to fraction form
    212,945.60/293,854.40 = 128,046.24/x
  3. Step 3: Cross multiply
    212,945.60x = 293,854.40 × 128,046.24
  4. Step 4: Simplify right side
    212,945.60x = 37,626,951,027.46
  5. Step 5: Solve for x
    x = 37,626,951,027.46/212,945.60
  6. Step 6: Final answer
    x = 176,697.48

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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.