Home / 235,685.16-353,583.12-77,913.64

Finding the Fourth Proportional to 235,685.16, 353,583.12 and 77,913.64

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Solution

The fourth proportional to 235,685.16, 353,583.12 and 77,913.64 is: 116,888.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,685.16 : 353,583.12 = 77,913.64 : x
  2. Step 2: Convert to fraction form
    235,685.16/353,583.12 = 77,913.64/x
  3. Step 3: Cross multiply
    235,685.16x = 353,583.12 × 77,913.64
  4. Step 4: Simplify right side
    235,685.16x = 27,548,947,921.76
  5. Step 5: Solve for x
    x = 27,548,947,921.76/235,685.16
  6. Step 6: Final answer
    x = 116,888.77

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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.