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Finding the Fourth Proportional to 130,374.36, 179,901.75 and 73,005.71

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Solution

The fourth proportional to 130,374.36, 179,901.75 and 73,005.71 is: 100,739.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,374.36 : 179,901.75 = 73,005.71 : x
  2. Step 2: Convert to fraction form
    130,374.36/179,901.75 = 73,005.71/x
  3. Step 3: Cross multiply
    130,374.36x = 179,901.75 × 73,005.71
  4. Step 4: Simplify right side
    130,374.36x = 13,133,854,089.48
  5. Step 5: Solve for x
    x = 13,133,854,089.48/130,374.36
  6. Step 6: Final answer
    x = 100,739.55

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1.5x scale

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.