Home / 103,868.79-143,339.01-56,122.13

Finding the Fourth Proportional to 103,868.79, 143,339.01 and 56,122.13

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Solution

The fourth proportional to 103,868.79, 143,339.01 and 56,122.13 is: 77,448.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,868.79 : 143,339.01 = 56,122.13 : x
  2. Step 2: Convert to fraction form
    103,868.79/143,339.01 = 56,122.13/x
  3. Step 3: Cross multiply
    103,868.79x = 143,339.01 × 56,122.13
  4. Step 4: Simplify right side
    103,868.79x = 8,044,489,836.60
  5. Step 5: Solve for x
    x = 8,044,489,836.60/103,868.79
  6. Step 6: Final answer
    x = 77,448.58

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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.