Home / 124,478.21-171,779.15-70,763.24

Finding the Fourth Proportional to 124,478.21, 171,779.15 and 70,763.24

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Solution

The fourth proportional to 124,478.21, 171,779.15 and 70,763.24 is: 97,652.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,478.21 : 171,779.15 = 70,763.24 : x
  2. Step 2: Convert to fraction form
    124,478.21/171,779.15 = 70,763.24/x
  3. Step 3: Cross multiply
    124,478.21x = 171,779.15 × 70,763.24
  4. Step 4: Simplify right side
    124,478.21x = 12,155,649,470.99
  5. Step 5: Solve for x
    x = 12,155,649,470.99/124,478.21
  6. Step 6: Final answer
    x = 97,652.83

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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.