Home / 236,748.90-326,721.33-129,328.95

Finding the Fourth Proportional to 236,748.90, 326,721.33 and 129,328.95

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Solution

The fourth proportional to 236,748.90, 326,721.33 and 129,328.95 is: 178,478.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,748.90 : 326,721.33 = 129,328.95 : x
  2. Step 2: Convert to fraction form
    236,748.90/326,721.33 = 129,328.95/x
  3. Step 3: Cross multiply
    236,748.90x = 326,721.33 × 129,328.95
  4. Step 4: Simplify right side
    236,748.90x = 42,254,526,551.50
  5. Step 5: Solve for x
    x = 42,254,526,551.50/236,748.90
  6. Step 6: Final answer
    x = 178,478.24

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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.