Home / 219,531.12-302,954.40-118,929.12

Finding the Fourth Proportional to 219,531.12, 302,954.40 and 118,929.12

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Solution

The fourth proportional to 219,531.12, 302,954.40 and 118,929.12 is: 164,122.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,531.12 : 302,954.40 = 118,929.12 : x
  2. Step 2: Convert to fraction form
    219,531.12/302,954.40 = 118,929.12/x
  3. Step 3: Cross multiply
    219,531.12x = 302,954.40 × 118,929.12
  4. Step 4: Simplify right side
    219,531.12x = 36,030,100,192.13
  5. Step 5: Solve for x
    x = 36,030,100,192.13/219,531.12
  6. Step 6: Final answer
    x = 164,122.97

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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.