Home / 105,074.73-145,002.65-57,327.93

Finding the Fourth Proportional to 105,074.73, 145,002.65 and 57,327.93

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Solution

The fourth proportional to 105,074.73, 145,002.65 and 57,327.93 is: 79,112.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,074.73 : 145,002.65 = 57,327.93 : x
  2. Step 2: Convert to fraction form
    105,074.73/145,002.65 = 57,327.93/x
  3. Step 3: Cross multiply
    105,074.73x = 145,002.65 × 57,327.93
  4. Step 4: Simplify right side
    105,074.73x = 8,312,701,482.37
  5. Step 5: Solve for x
    x = 8,312,701,482.37/105,074.73
  6. Step 6: Final answer
    x = 79,112.28

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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.