Home / 180,975.59-249,776.29-100,428.98

Finding the Fourth Proportional to 180,975.59, 249,776.29 and 100,428.98

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Solution

The fourth proportional to 180,975.59, 249,776.29 and 100,428.98 is: 138,608.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,975.59 : 249,776.29 = 100,428.98 : x
  2. Step 2: Convert to fraction form
    180,975.59/249,776.29 = 100,428.98/x
  3. Step 3: Cross multiply
    180,975.59x = 249,776.29 × 100,428.98
  4. Step 4: Simplify right side
    180,975.59x = 25,084,778,406.25
  5. Step 5: Solve for x
    x = 25,084,778,406.25/180,975.59
  6. Step 6: Final answer
    x = 138,608.63

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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.