Home / 114,545.41-157,512.13-99,411.78

Finding the Fourth Proportional to 114,545.41, 157,512.13 and 99,411.78

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Solution

The fourth proportional to 114,545.41, 157,512.13 and 99,411.78 is: 136,701.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,545.41 : 157,512.13 = 99,411.78 : x
  2. Step 2: Convert to fraction form
    114,545.41/157,512.13 = 99,411.78/x
  3. Step 3: Cross multiply
    114,545.41x = 157,512.13 × 99,411.78
  4. Step 4: Simplify right side
    114,545.41x = 15,658,561,557.03
  5. Step 5: Solve for x
    x = 15,658,561,557.03/114,545.41
  6. Step 6: Final answer
    x = 136,701.78

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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.