Home / 88,123.12-121,673.14-54,177.16

Finding the Fourth Proportional to 88,123.12, 121,673.14 and 54,177.16

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Solution

The fourth proportional to 88,123.12, 121,673.14 and 54,177.16 is: 74,803.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,123.12 : 121,673.14 = 54,177.16 : x
  2. Step 2: Convert to fraction form
    88,123.12/121,673.14 = 54,177.16/x
  3. Step 3: Cross multiply
    88,123.12x = 121,673.14 × 54,177.16
  4. Step 4: Simplify right side
    88,123.12x = 6,591,905,173.48
  5. Step 5: Solve for x
    x = 6,591,905,173.48/88,123.12
  6. Step 6: Final answer
    x = 74,803.36

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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.