Home / 118,777.54-163,904.11-67,788.85

Finding the Fourth Proportional to 118,777.54, 163,904.11 and 67,788.85

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Solution

The fourth proportional to 118,777.54, 163,904.11 and 67,788.85 is: 93,543.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,777.54 : 163,904.11 = 67,788.85 : x
  2. Step 2: Convert to fraction form
    118,777.54/163,904.11 = 67,788.85/x
  3. Step 3: Cross multiply
    118,777.54x = 163,904.11 × 67,788.85
  4. Step 4: Simplify right side
    118,777.54x = 11,110,871,127.17
  5. Step 5: Solve for x
    x = 11,110,871,127.17/118,777.54
  6. Step 6: Final answer
    x = 93,543.54

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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.