Home / 107,518.85-148,398.59-68,202.40

Finding the Fourth Proportional to 107,518.85, 148,398.59 and 68,202.40

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Solution

The fourth proportional to 107,518.85, 148,398.59 and 68,202.40 is: 94,133.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,518.85 : 148,398.59 = 68,202.40 : x
  2. Step 2: Convert to fraction form
    107,518.85/148,398.59 = 68,202.40/x
  3. Step 3: Cross multiply
    107,518.85x = 148,398.59 × 68,202.40
  4. Step 4: Simplify right side
    107,518.85x = 10,121,138,911.61
  5. Step 5: Solve for x
    x = 10,121,138,911.61/107,518.85
  6. Step 6: Final answer
    x = 94,133.63

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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.