Home / 101,420.07-152,177.49-45,254.31

Finding the Fourth Proportional to 101,420.07, 152,177.49 and 45,254.31

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Solution

The fourth proportional to 101,420.07, 152,177.49 and 45,254.31 is: 67,902.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,420.07 : 152,177.49 = 45,254.31 : x
  2. Step 2: Convert to fraction form
    101,420.07/152,177.49 = 45,254.31/x
  3. Step 3: Cross multiply
    101,420.07x = 152,177.49 × 45,254.31
  4. Step 4: Simplify right side
    101,420.07x = 6,886,687,307.48
  5. Step 5: Solve for x
    x = 6,886,687,307.48/101,420.07
  6. Step 6: Final answer
    x = 67,902.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.