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Finding the Fourth Proportional to 106,848.40, 147,404.46 and 64,382.80

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Solution

The fourth proportional to 106,848.40, 147,404.46 and 64,382.80 is: 88,820.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,848.40 : 147,404.46 = 64,382.80 : x
  2. Step 2: Convert to fraction form
    106,848.40/147,404.46 = 64,382.80/x
  3. Step 3: Cross multiply
    106,848.40x = 147,404.46 × 64,382.80
  4. Step 4: Simplify right side
    106,848.40x = 9,490,311,867.29
  5. Step 5: Solve for x
    x = 9,490,311,867.29/106,848.40
  6. Step 6: Final answer
    x = 88,820.35

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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.