Home / 106,728.58-147,281.61-64,278.82

Finding the Fourth Proportional to 106,728.58, 147,281.61 and 64,278.82

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Solution

The fourth proportional to 106,728.58, 147,281.61 and 64,278.82 is: 88,702.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,728.58 : 147,281.61 = 64,278.82 : x
  2. Step 2: Convert to fraction form
    106,728.58/147,281.61 = 64,278.82/x
  3. Step 3: Cross multiply
    106,728.58x = 147,281.61 × 64,278.82
  4. Step 4: Simplify right side
    106,728.58x = 9,467,088,098.50
  5. Step 5: Solve for x
    x = 9,467,088,098.50/106,728.58
  6. Step 6: Final answer
    x = 88,702.46

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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.