Home / 180,530.43-249,146.02-99,965.45

Finding the Fourth Proportional to 180,530.43, 249,146.02 and 99,965.45

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Solution

The fourth proportional to 180,530.43, 249,146.02 and 99,965.45 is: 137,960.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,530.43 : 249,146.02 = 99,965.45 : x
  2. Step 2: Convert to fraction form
    180,530.43/249,146.02 = 99,965.45/x
  3. Step 3: Cross multiply
    180,530.43x = 249,146.02 × 99,965.45
  4. Step 4: Simplify right side
    180,530.43x = 24,905,994,005.01
  5. Step 5: Solve for x
    x = 24,905,994,005.01/180,530.43
  6. Step 6: Final answer
    x = 137,960.09

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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.