Home / 157,986.74-218,023.14-90,002.70

Finding the Fourth Proportional to 157,986.74, 218,023.14 and 90,002.70

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Solution

The fourth proportional to 157,986.74, 218,023.14 and 90,002.70 is: 124,204.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,986.74 : 218,023.14 = 90,002.70 : x
  2. Step 2: Convert to fraction form
    157,986.74/218,023.14 = 90,002.70/x
  3. Step 3: Cross multiply
    157,986.74x = 218,023.14 × 90,002.70
  4. Step 4: Simplify right side
    157,986.74x = 19,622,671,262.48
  5. Step 5: Solve for x
    x = 19,622,671,262.48/157,986.74
  6. Step 6: Final answer
    x = 124,204.55

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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.