Home / 103,538,114.64-142,885,588-57,131,357.84

Finding the Fourth Proportional to 103,538,114.64, 142,885,588 and 57,131,357.84

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Solution

The fourth proportional to 103,538,114.64, 142,885,588 and 57,131,357.84 is: 78,842,923.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,538,114.64 : 142,885,588 = 57,131,357.84 : x
  2. Step 2: Convert to fraction form
    103,538,114.64/142,885,588 = 57,131,357.84/x
  3. Step 3: Cross multiply
    103,538,114.64x = 142,885,588 × 57,131,357.84
  4. Step 4: Simplify right side
    103,538,114.64x = 8,163,247,658,206,810
  5. Step 5: Solve for x
    x = 8,163,247,658,206,810/103,538,114.64
  6. Step 6: Final answer
    x = 78,842,923.56

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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.