Home / 236,478.56-326,347.38-129,055.55

Finding the Fourth Proportional to 236,478.56, 326,347.38 and 129,055.55

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Solution

The fourth proportional to 236,478.56, 326,347.38 and 129,055.55 is: 178,100.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,478.56 : 326,347.38 = 129,055.55 : x
  2. Step 2: Convert to fraction form
    236,478.56/326,347.38 = 129,055.55/x
  3. Step 3: Cross multiply
    236,478.56x = 326,347.38 × 129,055.55
  4. Step 4: Simplify right side
    236,478.56x = 42,116,938,985.22
  5. Step 5: Solve for x
    x = 42,116,938,985.22/236,478.56
  6. Step 6: Final answer
    x = 178,100.46

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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.