Home / 153,582.08-211,935.79-85,606.47

Finding the Fourth Proportional to 153,582.08, 211,935.79 and 85,606.47

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Solution

The fourth proportional to 153,582.08, 211,935.79 and 85,606.47 is: 118,132.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,582.08 : 211,935.79 = 85,606.47 : x
  2. Step 2: Convert to fraction form
    153,582.08/211,935.79 = 85,606.47/x
  3. Step 3: Cross multiply
    153,582.08x = 211,935.79 × 85,606.47
  4. Step 4: Simplify right side
    153,582.08x = 18,143,074,955.57
  5. Step 5: Solve for x
    x = 18,143,074,955.57/153,582.08
  6. Step 6: Final answer
    x = 118,132.76

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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.