Home / 103,782.49-143,106.59-70,190.17

Finding the Fourth Proportional to 103,782.49, 143,106.59 and 70,190.17

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Solution

The fourth proportional to 103,782.49, 143,106.59 and 70,190.17 is: 96,785.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,782.49 : 143,106.59 = 70,190.17 : x
  2. Step 2: Convert to fraction form
    103,782.49/143,106.59 = 70,190.17/x
  3. Step 3: Cross multiply
    103,782.49x = 143,106.59 × 70,190.17
  4. Step 4: Simplify right side
    103,782.49x = 10,044,675,529.27
  5. Step 5: Solve for x
    x = 10,044,675,529.27/103,782.49
  6. Step 6: Final answer
    x = 96,785.84

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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.