Home / 106,780.28-147,350.46-59,030.78

Finding the Fourth Proportional to 106,780.28, 147,350.46 and 59,030.78

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Solution

The fourth proportional to 106,780.28, 147,350.46 and 59,030.78 is: 81,458.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,780.28 : 147,350.46 = 59,030.78 : x
  2. Step 2: Convert to fraction form
    106,780.28/147,350.46 = 59,030.78/x
  3. Step 3: Cross multiply
    106,780.28x = 147,350.46 × 59,030.78
  4. Step 4: Simplify right side
    106,780.28x = 8,698,211,850.41
  5. Step 5: Solve for x
    x = 8,698,211,850.41/106,780.28
  6. Step 6: Final answer
    x = 81,458.98

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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.