Home / 130,945.71-180,699.25-76,502.93

Finding the Fourth Proportional to 130,945.71, 180,699.25 and 76,502.93

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Solution

The fourth proportional to 130,945.71, 180,699.25 and 76,502.93 is: 105,570.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,945.71 : 180,699.25 = 76,502.93 : x
  2. Step 2: Convert to fraction form
    130,945.71/180,699.25 = 76,502.93/x
  3. Step 3: Cross multiply
    130,945.71x = 180,699.25 × 76,502.93
  4. Step 4: Simplify right side
    130,945.71x = 13,824,022,073.80
  5. Step 5: Solve for x
    x = 13,824,022,073.80/130,945.71
  6. Step 6: Final answer
    x = 105,570.64

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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.