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Finding the Fourth Proportional to 180,530.99, 249,112.65 and 99,938.33

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Solution

The fourth proportional to 180,530.99, 249,112.65 and 99,938.33 is: 137,903.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,530.99 : 249,112.65 = 99,938.33 : x
  2. Step 2: Convert to fraction form
    180,530.99/249,112.65 = 99,938.33/x
  3. Step 3: Cross multiply
    180,530.99x = 249,112.65 × 99,938.33
  4. Step 4: Simplify right side
    180,530.99x = 24,895,902,222.87
  5. Step 5: Solve for x
    x = 24,895,902,222.87/180,530.99
  6. Step 6: Final answer
    x = 137,903.76

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1.5x scale

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.