Home / 219,142.53-302,421.41-121,025.47

Finding the Fourth Proportional to 219,142.53, 302,421.41 and 121,025.47

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Solution

The fourth proportional to 219,142.53, 302,421.41 and 121,025.47 is: 167,017.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,142.53 : 302,421.41 = 121,025.47 : x
  2. Step 2: Convert to fraction form
    219,142.53/302,421.41 = 121,025.47/x
  3. Step 3: Cross multiply
    219,142.53x = 302,421.41 × 121,025.47
  4. Step 4: Simplify right side
    219,142.53x = 36,600,692,527.26
  5. Step 5: Solve for x
    x = 36,600,692,527.26/219,142.53
  6. Step 6: Final answer
    x = 167,017.75

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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.