Home / 105,275.36-157,913.04-52,631.84

Finding the Fourth Proportional to 105,275.36, 157,913.04 and 52,631.84

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Solution

The fourth proportional to 105,275.36, 157,913.04 and 52,631.84 is: 78,947.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,275.36 : 157,913.04 = 52,631.84 : x
  2. Step 2: Convert to fraction form
    105,275.36/157,913.04 = 52,631.84/x
  3. Step 3: Cross multiply
    105,275.36x = 157,913.04 × 52,631.84
  4. Step 4: Simplify right side
    105,275.36x = 8,311,253,855.19
  5. Step 5: Solve for x
    x = 8,311,253,855.19/105,275.36
  6. Step 6: Final answer
    x = 78,947.76

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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.