Home / 155,704.02-214,881.26-90,306.14

Finding the Fourth Proportional to 155,704.02, 214,881.26 and 90,306.14

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Solution

The fourth proportional to 155,704.02, 214,881.26 and 90,306.14 is: 124,628.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,704.02 : 214,881.26 = 90,306.14 : x
  2. Step 2: Convert to fraction form
    155,704.02/214,881.26 = 90,306.14/x
  3. Step 3: Cross multiply
    155,704.02x = 214,881.26 × 90,306.14
  4. Step 4: Simplify right side
    155,704.02x = 19,405,096,831.71
  5. Step 5: Solve for x
    x = 19,405,096,831.71/155,704.02
  6. Step 6: Final answer
    x = 124,628.10

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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.