Home / 105,636.33-145,779.29-57,888.66

Finding the Fourth Proportional to 105,636.33, 145,779.29 and 57,888.66

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Solution

The fourth proportional to 105,636.33, 145,779.29 and 57,888.66 is: 79,886.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,636.33 : 145,779.29 = 57,888.66 : x
  2. Step 2: Convert to fraction form
    105,636.33/145,779.29 = 57,888.66/x
  3. Step 3: Cross multiply
    105,636.33x = 145,779.29 × 57,888.66
  4. Step 4: Simplify right side
    105,636.33x = 8,438,967,464.41
  5. Step 5: Solve for x
    x = 8,438,967,464.41/105,636.33
  6. Step 6: Final answer
    x = 79,886.98

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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.