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Finding the Fourth Proportional to 110,235.66, 152,120.80 and 64,915.55

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Solution

The fourth proportional to 110,235.66, 152,120.80 and 64,915.55 is: 89,580.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,235.66 : 152,120.80 = 64,915.55 : x
  2. Step 2: Convert to fraction form
    110,235.66/152,120.80 = 64,915.55/x
  3. Step 3: Cross multiply
    110,235.66x = 152,120.80 × 64,915.55
  4. Step 4: Simplify right side
    110,235.66x = 9,875,005,289.43
  5. Step 5: Solve for x
    x = 9,875,005,289.43/110,235.66
  6. Step 6: Final answer
    x = 89,580.86

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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.