Home / 98,117.66-135,403.79-55,106.46

Finding the Fourth Proportional to 98,117.66, 135,403.79 and 55,106.46

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Solution

The fourth proportional to 98,117.66, 135,403.79 and 55,106.46 is: 76,047.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,117.66 : 135,403.79 = 55,106.46 : x
  2. Step 2: Convert to fraction form
    98,117.66/135,403.79 = 55,106.46/x
  3. Step 3: Cross multiply
    98,117.66x = 135,403.79 × 55,106.46
  4. Step 4: Simplify right side
    98,117.66x = 7,461,623,261.95
  5. Step 5: Solve for x
    x = 7,461,623,261.95/98,117.66
  6. Step 6: Final answer
    x = 76,047.71

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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.