Home / 105,525.18-145,624.23-57,777.66

Finding the Fourth Proportional to 105,525.18, 145,624.23 and 57,777.66

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Solution

The fourth proportional to 105,525.18, 145,624.23 and 57,777.66 is: 79,732.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,525.18 : 145,624.23 = 57,777.66 : x
  2. Step 2: Convert to fraction form
    105,525.18/145,624.23 = 57,777.66/x
  3. Step 3: Cross multiply
    105,525.18x = 145,624.23 × 57,777.66
  4. Step 4: Simplify right side
    105,525.18x = 8,413,827,248.70
  5. Step 5: Solve for x
    x = 8,413,827,248.70/105,525.18
  6. Step 6: Final answer
    x = 79,732.89

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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.