Home / 103,623.03-142,998.77-57,681.95

Finding the Fourth Proportional to 103,623.03, 142,998.77 and 57,681.95

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Solution

The fourth proportional to 103,623.03, 142,998.77 and 57,681.95 is: 79,600.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,623.03 : 142,998.77 = 57,681.95 : x
  2. Step 2: Convert to fraction form
    103,623.03/142,998.77 = 57,681.95/x
  3. Step 3: Cross multiply
    103,623.03x = 142,998.77 × 57,681.95
  4. Step 4: Simplify right side
    103,623.03x = 8,248,447,249.30
  5. Step 5: Solve for x
    x = 8,248,447,249.30/103,623.03
  6. Step 6: Final answer
    x = 79,600.52

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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.