Home / 124,881.40-187,322.10-72,263.80

Finding the Fourth Proportional to 124,881.40, 187,322.10 and 72,263.80

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Solution

The fourth proportional to 124,881.40, 187,322.10 and 72,263.80 is: 108,395.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,881.40 : 187,322.10 = 72,263.80 : x
  2. Step 2: Convert to fraction form
    124,881.40/187,322.10 = 72,263.80/x
  3. Step 3: Cross multiply
    124,881.40x = 187,322.10 × 72,263.80
  4. Step 4: Simplify right side
    124,881.40x = 13,536,606,769.98
  5. Step 5: Solve for x
    x = 13,536,606,769.98/124,881.40
  6. Step 6: Final answer
    x = 108,395.70

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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.