Home / 105,314.40-145,331.28-57,567.96

Finding the Fourth Proportional to 105,314.40, 145,331.28 and 57,567.96

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Solution

The fourth proportional to 105,314.40, 145,331.28 and 57,567.96 is: 79,442.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,314.40 : 145,331.28 = 57,567.96 : x
  2. Step 2: Convert to fraction form
    105,314.40/145,331.28 = 57,567.96/x
  3. Step 3: Cross multiply
    105,314.40x = 145,331.28 × 57,567.96
  4. Step 4: Simplify right side
    105,314.40x = 8,366,425,313.79
  5. Step 5: Solve for x
    x = 8,366,425,313.79/105,314.40
  6. Step 6: Final answer
    x = 79,442.37

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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.