Home / 155,132.60-214,108.40-129,250.13

Finding the Fourth Proportional to 155,132.60, 214,108.40 and 129,250.13

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Solution

The fourth proportional to 155,132.60, 214,108.40 and 129,250.13 is: 178,386.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,132.60 : 214,108.40 = 129,250.13 : x
  2. Step 2: Convert to fraction form
    155,132.60/214,108.40 = 129,250.13/x
  3. Step 3: Cross multiply
    155,132.60x = 214,108.40 × 129,250.13
  4. Step 4: Simplify right side
    155,132.60x = 27,673,537,786.68
  5. Step 5: Solve for x
    x = 27,673,537,786.68/155,132.60
  6. Step 6: Final answer
    x = 178,386.35

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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.