Home / 130,275.81-179,637.86-84,869.59

Finding the Fourth Proportional to 130,275.81, 179,637.86 and 84,869.59

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Solution

The fourth proportional to 130,275.81, 179,637.86 and 84,869.59 is: 117,027.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,275.81 : 179,637.86 = 84,869.59 : x
  2. Step 2: Convert to fraction form
    130,275.81/179,637.86 = 84,869.59/x
  3. Step 3: Cross multiply
    130,275.81x = 179,637.86 × 84,869.59
  4. Step 4: Simplify right side
    130,275.81x = 15,245,792,226.84
  5. Step 5: Solve for x
    x = 15,245,792,226.84/130,275.81
  6. Step 6: Final answer
    x = 117,027.03

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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.