Home / 107,923.70-161,885.55-76,430.90

Finding the Fourth Proportional to 107,923.70, 161,885.55 and 76,430.90

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Solution

The fourth proportional to 107,923.70, 161,885.55 and 76,430.90 is: 114,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,923.70 : 161,885.55 = 76,430.90 : x
  2. Step 2: Convert to fraction form
    107,923.70/161,885.55 = 76,430.90/x
  3. Step 3: Cross multiply
    107,923.70x = 161,885.55 × 76,430.90
  4. Step 4: Simplify right side
    107,923.70x = 12,373,058,283.50
  5. Step 5: Solve for x
    x = 12,373,058,283.50/107,923.70
  6. Step 6: Final answer
    x = 114,646.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.