Home / 180,561.23-249,171.40-99,987.02

Finding the Fourth Proportional to 180,561.23, 249,171.40 and 99,987.02

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Solution

The fourth proportional to 180,561.23, 249,171.40 and 99,987.02 is: 137,980.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,561.23 : 249,171.40 = 99,987.02 : x
  2. Step 2: Convert to fraction form
    180,561.23/249,171.40 = 99,987.02/x
  3. Step 3: Cross multiply
    180,561.23x = 249,171.40 × 99,987.02
  4. Step 4: Simplify right side
    180,561.23x = 24,913,905,755.23
  5. Step 5: Solve for x
    x = 24,913,905,755.23/180,561.23
  6. Step 6: Final answer
    x = 137,980.37

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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.