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Finding the Fourth Proportional to 134,657.64, 185,819.67 and 77,283.72

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Solution

The fourth proportional to 134,657.64, 185,819.67 and 77,283.72 is: 106,647.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,657.64 : 185,819.67 = 77,283.72 : x
  2. Step 2: Convert to fraction form
    134,657.64/185,819.67 = 77,283.72/x
  3. Step 3: Cross multiply
    134,657.64x = 185,819.67 × 77,283.72
  4. Step 4: Simplify right side
    134,657.64x = 14,360,835,346.77
  5. Step 5: Solve for x
    x = 14,360,835,346.77/134,657.64
  6. Step 6: Final answer
    x = 106,647.01

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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.