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Finding the Fourth Proportional to 107,385.60, 160,886.40 and 51,859.20

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Solution

The fourth proportional to 107,385.60, 160,886.40 and 51,859.20 is: 77,696.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,385.60 : 160,886.40 = 51,859.20 : x
  2. Step 2: Convert to fraction form
    107,385.60/160,886.40 = 51,859.20/x
  3. Step 3: Cross multiply
    107,385.60x = 160,886.40 × 51,859.20
  4. Step 4: Simplify right side
    107,385.60x = 8,343,439,994.88
  5. Step 5: Solve for x
    x = 8,343,439,994.88/107,385.60
  6. Step 6: Final answer
    x = 77,696.08

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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.