Home / 249,931.86-374,859.33-81,451.80

Finding the Fourth Proportional to 249,931.86, 374,859.33 and 81,451.80

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Solution

The fourth proportional to 249,931.86, 374,859.33 and 81,451.80 is: 122,165.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,931.86 : 374,859.33 = 81,451.80 : x
  2. Step 2: Convert to fraction form
    249,931.86/374,859.33 = 81,451.80/x
  3. Step 3: Cross multiply
    249,931.86x = 374,859.33 × 81,451.80
  4. Step 4: Simplify right side
    249,931.86x = 30,532,967,175.29
  5. Step 5: Solve for x
    x = 30,532,967,175.29/249,931.86
  6. Step 6: Final answer
    x = 122,165.17

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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.