Home / 130,699.65-180,365.49-74,110.89

Finding the Fourth Proportional to 130,699.65, 180,365.49 and 74,110.89

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Solution

The fourth proportional to 130,699.65, 180,365.49 and 74,110.89 is: 102,273.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,699.65 : 180,365.49 = 74,110.89 : x
  2. Step 2: Convert to fraction form
    130,699.65/180,365.49 = 74,110.89/x
  3. Step 3: Cross multiply
    130,699.65x = 180,365.49 × 74,110.89
  4. Step 4: Simplify right side
    130,699.65x = 13,367,046,989.19
  5. Step 5: Solve for x
    x = 13,367,046,989.19/130,699.65
  6. Step 6: Final answer
    x = 102,273.01

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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.