Home / 145,624.27-218,461.31-66,745.25

Finding the Fourth Proportional to 145,624.27, 218,461.31 and 66,745.25

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Solution

The fourth proportional to 145,624.27, 218,461.31 and 66,745.25 is: 100,129.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,624.27 : 218,461.31 = 66,745.25 : x
  2. Step 2: Convert to fraction form
    145,624.27/218,461.31 = 66,745.25/x
  3. Step 3: Cross multiply
    145,624.27x = 218,461.31 × 66,745.25
  4. Step 4: Simplify right side
    145,624.27x = 14,581,254,751.28
  5. Step 5: Solve for x
    x = 14,581,254,751.28/145,624.27
  6. Step 6: Final answer
    x = 100,129.29

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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.