Home / 155,132.48-214,085.71-86,228.40

Finding the Fourth Proportional to 155,132.48, 214,085.71 and 86,228.40

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Solution

The fourth proportional to 155,132.48, 214,085.71 and 86,228.40 is: 118,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,132.48 : 214,085.71 = 86,228.40 : x
  2. Step 2: Convert to fraction form
    155,132.48/214,085.71 = 86,228.40/x
  3. Step 3: Cross multiply
    155,132.48x = 214,085.71 × 86,228.40
  4. Step 4: Simplify right side
    155,132.48x = 18,460,268,236.16
  5. Step 5: Solve for x
    x = 18,460,268,236.16/155,132.48
  6. Step 6: Final answer
    x = 118,996.80

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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.