Home / 103,358.13-142,632.41-58,036.47

Finding the Fourth Proportional to 103,358.13, 142,632.41 and 58,036.47

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Solution

The fourth proportional to 103,358.13, 142,632.41 and 58,036.47 is: 80,089.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,358.13 : 142,632.41 = 58,036.47 : x
  2. Step 2: Convert to fraction form
    103,358.13/142,632.41 = 58,036.47/x
  3. Step 3: Cross multiply
    103,358.13x = 142,632.41 × 58,036.47
  4. Step 4: Simplify right side
    103,358.13x = 8,277,881,293.81
  5. Step 5: Solve for x
    x = 8,277,881,293.81/103,358.13
  6. Step 6: Final answer
    x = 80,089.31

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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.