Home / 105,073.73-145,001.55-57,327.11

Finding the Fourth Proportional to 105,073.73, 145,001.55 and 57,327.11

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Solution

The fourth proportional to 105,073.73, 145,001.55 and 57,327.11 is: 79,111.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,073.73 : 145,001.55 = 57,327.11 : x
  2. Step 2: Convert to fraction form
    105,073.73/145,001.55 = 57,327.11/x
  3. Step 3: Cross multiply
    105,073.73x = 145,001.55 × 57,327.11
  4. Step 4: Simplify right side
    105,073.73x = 8,312,519,807.02
  5. Step 5: Solve for x
    x = 8,312,519,807.02/105,073.73
  6. Step 6: Final answer
    x = 79,111.30

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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.