Home / 115,909.73-159,946.65-70,582.69

Finding the Fourth Proportional to 115,909.73, 159,946.65 and 70,582.69

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Solution

The fourth proportional to 115,909.73, 159,946.65 and 70,582.69 is: 97,398.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,909.73 : 159,946.65 = 70,582.69 : x
  2. Step 2: Convert to fraction form
    115,909.73/159,946.65 = 70,582.69/x
  3. Step 3: Cross multiply
    115,909.73x = 159,946.65 × 70,582.69
  4. Step 4: Simplify right side
    115,909.73x = 11,289,465,013.42
  5. Step 5: Solve for x
    x = 11,289,465,013.42/115,909.73
  6. Step 6: Final answer
    x = 97,398.77

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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.