Home / 180,975.01-249,775.49-100,428.41

Finding the Fourth Proportional to 180,975.01, 249,775.49 and 100,428.41

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Solution

The fourth proportional to 180,975.01, 249,775.49 and 100,428.41 is: 138,607.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,975.01 : 249,775.49 = 100,428.41 : x
  2. Step 2: Convert to fraction form
    180,975.01/249,775.49 = 100,428.41/x
  3. Step 3: Cross multiply
    180,975.01x = 249,775.49 × 100,428.41
  4. Step 4: Simplify right side
    180,975.01x = 25,084,554,068.79
  5. Step 5: Solve for x
    x = 25,084,554,068.79/180,975.01
  6. Step 6: Final answer
    x = 138,607.84

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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.