Home / 212,054.48-292,686.89-130,402.84

Finding the Fourth Proportional to 212,054.48, 292,686.89 and 130,402.84

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Solution

The fourth proportional to 212,054.48, 292,686.89 and 130,402.84 is: 179,987.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,054.48 : 292,686.89 = 130,402.84 : x
  2. Step 2: Convert to fraction form
    212,054.48/292,686.89 = 130,402.84/x
  3. Step 3: Cross multiply
    212,054.48x = 292,686.89 × 130,402.84
  4. Step 4: Simplify right side
    212,054.48x = 38,167,201,128.92
  5. Step 5: Solve for x
    x = 38,167,201,128.92/212,054.48
  6. Step 6: Final answer
    x = 179,987.71

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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.