Home / 105,635.96-145,778.77-57,888.28

Finding the Fourth Proportional to 105,635.96, 145,778.77 and 57,888.28

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Solution

The fourth proportional to 105,635.96, 145,778.77 and 57,888.28 is: 79,886.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,635.96 : 145,778.77 = 57,888.28 : x
  2. Step 2: Convert to fraction form
    105,635.96/145,778.77 = 57,888.28/x
  3. Step 3: Cross multiply
    105,635.96x = 145,778.77 × 57,888.28
  4. Step 4: Simplify right side
    105,635.96x = 8,438,882,510.40
  5. Step 5: Solve for x
    x = 8,438,882,510.40/105,635.96
  6. Step 6: Final answer
    x = 79,886.46

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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.