Home / 154,002.54-212,527-90,386.22

Finding the Fourth Proportional to 154,002.54, 212,527 and 90,386.22

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Solution

The fourth proportional to 154,002.54, 212,527 and 90,386.22 is: 124,735.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,002.54 : 212,527 = 90,386.22 : x
  2. Step 2: Convert to fraction form
    154,002.54/212,527 = 90,386.22/x
  3. Step 3: Cross multiply
    154,002.54x = 212,527 × 90,386.22
  4. Step 4: Simplify right side
    154,002.54x = 19,209,512,177.94
  5. Step 5: Solve for x
    x = 19,209,512,177.94/154,002.54
  6. Step 6: Final answer
    x = 124,735.03

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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.