Home / 249,851.94-374,804.16-81,385.40

Finding the Fourth Proportional to 249,851.94, 374,804.16 and 81,385.40

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Solution

The fourth proportional to 249,851.94, 374,804.16 and 81,385.40 is: 122,086.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,851.94 : 374,804.16 = 81,385.40 : x
  2. Step 2: Convert to fraction form
    249,851.94/374,804.16 = 81,385.40/x
  3. Step 3: Cross multiply
    249,851.94x = 374,804.16 × 81,385.40
  4. Step 4: Simplify right side
    249,851.94x = 30,503,586,483.26
  5. Step 5: Solve for x
    x = 30,503,586,483.26/249,851.94
  6. Step 6: Final answer
    x = 122,086.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.