Home / 147,543.81-221,537.12-84,435.20

Finding the Fourth Proportional to 147,543.81, 221,537.12 and 84,435.20

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Solution

The fourth proportional to 147,543.81, 221,537.12 and 84,435.20 is: 126,779.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,543.81 : 221,537.12 = 84,435.20 : x
  2. Step 2: Convert to fraction form
    147,543.81/221,537.12 = 84,435.20/x
  3. Step 3: Cross multiply
    147,543.81x = 221,537.12 × 84,435.20
  4. Step 4: Simplify right side
    147,543.81x = 18,705,529,504.76
  5. Step 5: Solve for x
    x = 18,705,529,504.76/147,543.81
  6. Step 6: Final answer
    x = 126,779.49

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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.