Home / 219,142.28-302,421.07-121,025.22

Finding the Fourth Proportional to 219,142.28, 302,421.07 and 121,025.22

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Solution

The fourth proportional to 219,142.28, 302,421.07 and 121,025.22 is: 167,017.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,142.28 : 302,421.07 = 121,025.22 : x
  2. Step 2: Convert to fraction form
    219,142.28/302,421.07 = 121,025.22/x
  3. Step 3: Cross multiply
    219,142.28x = 302,421.07 × 121,025.22
  4. Step 4: Simplify right side
    219,142.28x = 36,600,574,865.82
  5. Step 5: Solve for x
    x = 36,600,574,865.82/219,142.28
  6. Step 6: Final answer
    x = 167,017.41

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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.